Trigonometry Examples

${(5 (\cos (30 °) + i \sin (30 °)))}^{4}$

Step 1

Simplify terms.

Tap for more steps...

Step 1.1

Simplify each term.

Tap for more steps...

Step 1.1.1

The exact value of $\cos (30 °)$ is $\frac{\sqrt{3}}{2}$ .

${(5 (\frac{\sqrt{3}}{2} + i \sin (30 °)))}^{4}$

Step 1.1.2

The exact value of $\sin (30 °)$ is $\frac{1}{2}$ .

${(5 (\frac{\sqrt{3}}{2} + i \frac{1}{2}))}^{4}$

Step 1.1.3

Combine $i$ and $\frac{1}{2}$ .

${(5 (\frac{\sqrt{3}}{2} + \frac{i}{2}))}^{4}$

Step 1.2

Simplify terms.

Tap for more steps...

Step 1.2.1

Apply the distributive property.

${(5 \frac{\sqrt{3}}{2} + 5 \frac{i}{2})}^{4}$

Step 1.2.2

Combine $5$ and $\frac{\sqrt{3}}{2}$ .

${(\frac{5 \sqrt{3}}{2} + 5 \frac{i}{2})}^{4}$

Step 1.2.3

Combine $5$ and $\frac{i}{2}$ .

${(\frac{5 \sqrt{3}}{2} + \frac{5 i}{2})}^{4}$

Step 2

Use the Binomial Theorem.

${(\frac{5 \sqrt{3}}{2})}^{4} + 4 {(\frac{5 \sqrt{3}}{2})}^{3} \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3

Simplify terms.

Tap for more steps...

Step 3.1

Simplify each term.

Tap for more steps...

Step 3.1.1

Use the power rule ${(a b)}^{n} = a^{n} b^{n}$ to distribute the exponent.

Tap for more steps...

Step 3.1.1.1

Apply the product rule to $\frac{5 \sqrt{3}}{2}$ .

$\frac{{(5 \sqrt{3})}^{4}}{2^{4}} + 4 {(\frac{5 \sqrt{3}}{2})}^{3} \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.1.2

Apply the product rule to $5 \sqrt{3}$ .

$\frac{5^{4} {\sqrt{3}}^{4}}{2^{4}} + 4 {(\frac{5 \sqrt{3}}{2})}^{3} \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.2

Simplify the numerator.

Tap for more steps...

Step 3.1.2.1

Raise $5$ to the power of $4$ .

$\frac{625 {\sqrt{3}}^{4}}{2^{4}} + 4 {(\frac{5 \sqrt{3}}{2})}^{3} \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.2.2

Rewrite ${\sqrt{3}}^{4}$ as $3^{2}$ .

Tap for more steps...

Step 3.1.2.2.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{3}$ as $3^{\frac{1}{2}}$ .

$\frac{625 {(3^{\frac{1}{2}})}^{4}}{2^{4}} + 4 {(\frac{5 \sqrt{3}}{2})}^{3} \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.2.2.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$\frac{625 \cdot 3^{\frac{1}{2} \cdot 4}}{2^{4}} + 4 {(\frac{5 \sqrt{3}}{2})}^{3} \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.2.2.3

Combine $\frac{1}{2}$ and $4$ .

$\frac{625 \cdot 3^{\frac{4}{2}}}{2^{4}} + 4 {(\frac{5 \sqrt{3}}{2})}^{3} \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.2.2.4

Cancel the common factor of $4$ and $2$ .

Tap for more steps...

Step 3.1.2.2.4.1

Factor $2$ out of $4$ .

$\frac{625 \cdot 3^{\frac{2 \cdot 2}{2}}}{2^{4}} + 4 {(\frac{5 \sqrt{3}}{2})}^{3} \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.2.2.4.2

Cancel the common factors.

Tap for more steps...

Step 3.1.2.2.4.2.1

Factor $2$ out of $2$ .

$\frac{625 \cdot 3^{\frac{2 \cdot 2}{2 (1)}}}{2^{4}} + 4 {(\frac{5 \sqrt{3}}{2})}^{3} \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.2.2.4.2.2

Cancel the common factor.

$\frac{625 \cdot 3^{\frac{2 \cdot 2}{2 \cdot 1}}}{2^{4}} + 4 {(\frac{5 \sqrt{3}}{2})}^{3} \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.2.2.4.2.3

Rewrite the expression.

$\frac{625 \cdot 3^{\frac{2}{1}}}{2^{4}} + 4 {(\frac{5 \sqrt{3}}{2})}^{3} \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.2.2.4.2.4

Divide $2$ by $1$ .

$\frac{625 \cdot 3^{2}}{2^{4}} + 4 {(\frac{5 \sqrt{3}}{2})}^{3} \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.2.3

Raise $3$ to the power of $2$ .

$\frac{625 \cdot 9}{2^{4}} + 4 {(\frac{5 \sqrt{3}}{2})}^{3} \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.3

Raise $2$ to the power of $4$ .

$\frac{625 \cdot 9}{16} + 4 {(\frac{5 \sqrt{3}}{2})}^{3} \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.4

Multiply $625$ by $9$ .

$\frac{5625}{16} + 4 {(\frac{5 \sqrt{3}}{2})}^{3} \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.5

Cancel the common factor of $2$ .

Tap for more steps...

Step 3.1.5.1

Factor $2$ out of $4 {(\frac{5 \sqrt{3}}{2})}^{3}$ .

$\frac{5625}{16} + 2 (2 {(\frac{5 \sqrt{3}}{2})}^{3}) \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.5.2

Cancel the common factor.

$\frac{5625}{16} + 2 (2 {(\frac{5 \sqrt{3}}{2})}^{3}) \frac{5 i}{2} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.5.3

Rewrite the expression.

$\frac{5625}{16} + 2 {(\frac{5 \sqrt{3}}{2})}^{3} (5 i) + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.6

Multiply $5$ by $2$ .

$\frac{5625}{16} + 10 {(\frac{5 \sqrt{3}}{2})}^{3} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.7

Use the power rule ${(a b)}^{n} = a^{n} b^{n}$ to distribute the exponent.

Tap for more steps...

Step 3.1.7.1

Apply the product rule to $\frac{5 \sqrt{3}}{2}$ .

$\frac{5625}{16} + 10 \frac{{(5 \sqrt{3})}^{3}}{2^{3}} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.7.2

Apply the product rule to $5 \sqrt{3}$ .

$\frac{5625}{16} + 10 \frac{5^{3} {\sqrt{3}}^{3}}{2^{3}} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.8

Simplify the numerator.

Tap for more steps...

Step 3.1.8.1

Raise $5$ to the power of $3$ .

$\frac{5625}{16} + 10 \frac{125 {\sqrt{3}}^{3}}{2^{3}} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.8.2

Rewrite ${\sqrt{3}}^{3}$ as $\sqrt{3^{3}}$ .

$\frac{5625}{16} + 10 \frac{125 \sqrt{3^{3}}}{2^{3}} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.8.3

Raise $3$ to the power of $3$ .

$\frac{5625}{16} + 10 \frac{125 \sqrt{27}}{2^{3}} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.8.4

Rewrite $27$ as $3^{2} \cdot 3$ .

Tap for more steps...

Step 3.1.8.4.1

Factor $9$ out of $27$ .

$\frac{5625}{16} + 10 \frac{125 \sqrt{9 (3)}}{2^{3}} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.8.4.2

Rewrite $9$ as $3^{2}$ .

$\frac{5625}{16} + 10 \frac{125 \sqrt{3^{2} \cdot 3}}{2^{3}} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.8.5

Pull terms out from under the radical.

$\frac{5625}{16} + 10 \frac{125 \cdot 3 \sqrt{3}}{2^{3}} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.8.6

Multiply $125$ by $3$ .

$\frac{5625}{16} + 10 \frac{375 \sqrt{3}}{2^{3}} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.9

Raise $2$ to the power of $3$ .

$\frac{5625}{16} + 10 \frac{375 \sqrt{3}}{8} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.10

Cancel the common factor of $2$ .

Tap for more steps...

Step 3.1.10.1

Factor $2$ out of $10$ .

$\frac{5625}{16} + 2 (5) \frac{375 \sqrt{3}}{8} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.10.2

Factor $2$ out of $8$ .

$\frac{5625}{16} + 2 \cdot 5 \frac{375 \sqrt{3}}{2 \cdot 4} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.10.3

Cancel the common factor.

$\frac{5625}{16} + 2 \cdot 5 \frac{375 \sqrt{3}}{2 \cdot 4} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.10.4

Rewrite the expression.

$\frac{5625}{16} + 5 \frac{375 \sqrt{3}}{4} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.11

Combine $5$ and $\frac{375 \sqrt{3}}{4}$ .

$\frac{5625}{16} + \frac{5 (375 \sqrt{3})}{4} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.12

Multiply $375$ by $5$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3}}{4} i + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.13

Combine $\frac{1875 \sqrt{3}}{4}$ and $i$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 6 {(\frac{5 \sqrt{3}}{2})}^{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.14

Use the power rule ${(a b)}^{n} = a^{n} b^{n}$ to distribute the exponent.

Tap for more steps...

Step 3.1.14.1

Apply the product rule to $\frac{5 \sqrt{3}}{2}$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 6 \frac{{(5 \sqrt{3})}^{2}}{2^{2}} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.14.2

Apply the product rule to $5 \sqrt{3}$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 6 \frac{5^{2} {\sqrt{3}}^{2}}{2^{2}} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.15

Simplify the numerator.

Tap for more steps...

Step 3.1.15.1

Raise $5$ to the power of $2$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 6 \frac{25 {\sqrt{3}}^{2}}{2^{2}} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.15.2

Rewrite ${\sqrt{3}}^{2}$ as $3$ .

Tap for more steps...

Step 3.1.15.2.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{3}$ as $3^{\frac{1}{2}}$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 6 \frac{25 {(3^{\frac{1}{2}})}^{2}}{2^{2}} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.15.2.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 6 \frac{25 \cdot 3^{\frac{1}{2} \cdot 2}}{2^{2}} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.15.2.3

Combine $\frac{1}{2}$ and $2$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 6 \frac{25 \cdot 3^{\frac{2}{2}}}{2^{2}} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.15.2.4

Cancel the common factor of $2$ .

Tap for more steps...

Step 3.1.15.2.4.1

Cancel the common factor.

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 6 \frac{25 \cdot 3^{\frac{2}{2}}}{2^{2}} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.15.2.4.2

Rewrite the expression.

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 6 \frac{25 \cdot 3^{1}}{2^{2}} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.15.2.5

Evaluate the exponent.

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 6 \frac{25 \cdot 3}{2^{2}} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.16

Raise $2$ to the power of $2$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 6 \frac{25 \cdot 3}{4} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.17

Multiply $25$ by $3$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 6 (\frac{75}{4}) {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.18

Cancel the common factor of $2$ .

Tap for more steps...

Step 3.1.18.1

Factor $2$ out of $6$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 2 (3) \frac{75}{4} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.18.2

Factor $2$ out of $4$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 2 \cdot 3 \frac{75}{2 \cdot 2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.18.3

Cancel the common factor.

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 2 \cdot 3 \frac{75}{2 \cdot 2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.18.4

Rewrite the expression.

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + 3 (\frac{75}{2}) {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.19

Combine $3$ and $\frac{75}{2}$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + \frac{3 \cdot 75}{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.20

Multiply $3$ by $75$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + \frac{225}{2} {(\frac{5 i}{2})}^{2} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.21

Use the power rule ${(a b)}^{n} = a^{n} b^{n}$ to distribute the exponent.

Tap for more steps...

Step 3.1.21.1

Apply the product rule to $\frac{5 i}{2}$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + \frac{225}{2} \cdot \frac{{(5 i)}^{2}}{2^{2}} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.21.2

Apply the product rule to $5 i$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + \frac{225}{2} \cdot \frac{5^{2} i^{2}}{2^{2}} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.22

Combine.

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + \frac{225 (5^{2} i^{2})}{2 \cdot 2^{2}} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.23

Multiply $2$ by $2^{2}$ by adding the exponents.

Tap for more steps...

Step 3.1.23.1

Multiply $2$ by $2^{2}$ .

Tap for more steps...

Step 3.1.23.1.1

Raise $2$ to the power of $1$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + \frac{225 (5^{2} i^{2})}{2^{1} \cdot 2^{2}} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.23.1.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + \frac{225 (5^{2} i^{2})}{2^{1 + 2}} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.23.2

Add $1$ and $2$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + \frac{225 (5^{2} i^{2})}{2^{3}} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.24

Simplify the numerator.

Tap for more steps...

Step 3.1.24.1

Raise $5$ to the power of $2$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + \frac{225 \cdot 25 i^{2}}{2^{3}} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.24.2

Rewrite $i^{2}$ as $- 1$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + \frac{225 \cdot 25 \cdot - 1}{2^{3}} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.24.3

Combine exponents.

Tap for more steps...

Step 3.1.24.3.1

Multiply $225$ by $25$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + \frac{5625 \cdot - 1}{2^{3}} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.24.3.2

Multiply $5625$ by $- 1$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + \frac{- 5625}{2^{3}} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.25

Raise $2$ to the power of $3$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} + \frac{- 5625}{8} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.26

Move the negative in front of the fraction.

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 4 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.27

Cancel the common factor of $2$ .

Tap for more steps...

Step 3.1.27.1

Factor $2$ out of $4$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 2 (2) \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.27.2

Cancel the common factor.

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 2 \cdot 2 \frac{5 \sqrt{3}}{2} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.27.3

Rewrite the expression.

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 2 (5 \sqrt{3}) {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.28

Multiply $5$ by $2$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 10 \sqrt{3} {(\frac{5 i}{2})}^{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.29

Use the power rule ${(a b)}^{n} = a^{n} b^{n}$ to distribute the exponent.

Tap for more steps...

Step 3.1.29.1

Apply the product rule to $\frac{5 i}{2}$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 10 \sqrt{3} \frac{{(5 i)}^{3}}{2^{3}} + {(\frac{5 i}{2})}^{4}$

Step 3.1.29.2

Apply the product rule to $5 i$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 10 \sqrt{3} \frac{5^{3} i^{3}}{2^{3}} + {(\frac{5 i}{2})}^{4}$

Step 3.1.30

Simplify the numerator.

Tap for more steps...

Step 3.1.30.1

Raise $5$ to the power of $3$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 10 \sqrt{3} \frac{125 i^{3}}{2^{3}} + {(\frac{5 i}{2})}^{4}$

Step 3.1.30.2

Factor out $i^{2}$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 10 \sqrt{3} \frac{125 (i^{2} \cdot i)}{2^{3}} + {(\frac{5 i}{2})}^{4}$

Step 3.1.30.3

Rewrite $i^{2}$ as $- 1$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 10 \sqrt{3} \frac{125 (- 1 \cdot i)}{2^{3}} + {(\frac{5 i}{2})}^{4}$

Step 3.1.30.4

Rewrite $- 1 i$ as $- i$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 10 \sqrt{3} \frac{125 \cdot - 1 i}{2^{3}} + {(\frac{5 i}{2})}^{4}$

Step 3.1.30.5

Combine exponents.

Tap for more steps...

Step 3.1.30.5.1

Factor out negative.

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 10 \sqrt{3} \frac{- (125 i)}{2^{3}} + {(\frac{5 i}{2})}^{4}$

Step 3.1.30.5.2

Multiply $125$ by $- 1$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 10 \sqrt{3} \frac{- 125 i}{2^{3}} + {(\frac{5 i}{2})}^{4}$

Step 3.1.31

Raise $2$ to the power of $3$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 10 \sqrt{3} \frac{- 125 i}{8} + {(\frac{5 i}{2})}^{4}$

Step 3.1.32

Cancel the common factor of $2$ .

Tap for more steps...

Step 3.1.32.1

Factor $2$ out of $10 \sqrt{3}$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 2 (5 \sqrt{3}) \frac{- 125 i}{8} + {(\frac{5 i}{2})}^{4}$

Step 3.1.32.2

Factor $2$ out of $8$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 2 (5 \sqrt{3}) \frac{- 125 i}{2 (4)} + {(\frac{5 i}{2})}^{4}$

Step 3.1.32.3

Cancel the common factor.

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 2 (5 \sqrt{3}) \frac{- 125 i}{2 \cdot 4} + {(\frac{5 i}{2})}^{4}$

Step 3.1.32.4

Rewrite the expression.

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + 5 \sqrt{3} \frac{- 125 i}{4} + {(\frac{5 i}{2})}^{4}$

Step 3.1.33

Combine $\frac{- 125 i}{4}$ and $5$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + \frac{- 125 i \cdot 5}{4} \sqrt{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.34

Multiply $5$ by $- 125$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + \frac{- 625 i}{4} \sqrt{3} + {(\frac{5 i}{2})}^{4}$

Step 3.1.35

Combine $\frac{- 625 i}{4}$ and $\sqrt{3}$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} + \frac{- 625 i \sqrt{3}}{4} + {(\frac{5 i}{2})}^{4}$

Step 3.1.36

Move the negative in front of the fraction.

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} - \frac{625 i \sqrt{3}}{4} + {(\frac{5 i}{2})}^{4}$

Step 3.1.37

Use the power rule ${(a b)}^{n} = a^{n} b^{n}$ to distribute the exponent.

Tap for more steps...

Step 3.1.37.1

Apply the product rule to $\frac{5 i}{2}$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} - \frac{625 i \sqrt{3}}{4} + \frac{{(5 i)}^{4}}{2^{4}}$

Step 3.1.37.2

Apply the product rule to $5 i$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} - \frac{625 i \sqrt{3}}{4} + \frac{5^{4} i^{4}}{2^{4}}$

Step 3.1.38

Simplify the numerator.

Tap for more steps...

Step 3.1.38.1

Raise $5$ to the power of $4$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} - \frac{625 i \sqrt{3}}{4} + \frac{625 i^{4}}{2^{4}}$

Step 3.1.38.2

Rewrite $i^{4}$ as $1$ .

Tap for more steps...

Step 3.1.38.2.1

Rewrite $i^{4}$ as ${(i^{2})}^{2}$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} - \frac{625 i \sqrt{3}}{4} + \frac{625 {(i^{2})}^{2}}{2^{4}}$

Step 3.1.38.2.2

Rewrite $i^{2}$ as $- 1$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} - \frac{625 i \sqrt{3}}{4} + \frac{625 {(- 1)}^{2}}{2^{4}}$

Step 3.1.38.2.3

Raise $- 1$ to the power of $2$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} - \frac{625 i \sqrt{3}}{4} + \frac{625 \cdot 1}{2^{4}}$

Step 3.1.39

Raise $2$ to the power of $4$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} - \frac{625 i \sqrt{3}}{4} + \frac{625 \cdot 1}{16}$

Step 3.1.40

Multiply $625$ by $1$ .

$\frac{5625}{16} + \frac{1875 \sqrt{3} i}{4} - \frac{5625}{8} - \frac{625 i \sqrt{3}}{4} + \frac{625}{16}$

Step 3.2

Simplify terms.

Tap for more steps...

Step 3.2.1

Combine the numerators over the common denominator.

$\frac{5625 + 625}{16} + \frac{1875 \sqrt{3} i - 625 i \sqrt{3}}{4} + \frac{- 5625}{8}$

Step 3.2.2

Simplify the expression.

Tap for more steps...

Step 3.2.2.1

Add $5625$ and $625$ .

$\frac{6250}{16} + \frac{1875 \sqrt{3} i - 625 i \sqrt{3}}{4} + \frac{- 5625}{8}$

Step 3.2.2.2

Reorder the factors of $1875 \sqrt{3} i$ .

$\frac{6250}{16} + \frac{1875 i \sqrt{3} - 625 i \sqrt{3}}{4} + \frac{- 5625}{8}$

Step 3.2.3

Subtract $625 i \sqrt{3}$ from $1875 i \sqrt{3}$ .

$\frac{6250}{16} + \frac{1250 i \sqrt{3}}{4} + \frac{- 5625}{8}$

Step 3.3

Simplify each term.

Tap for more steps...

Step 3.3.1

Cancel the common factor of $6250$ and $16$ .

Tap for more steps...

Step 3.3.1.1

Factor $2$ out of $6250$ .

$\frac{2 (3125)}{16} + \frac{1250 i \sqrt{3}}{4} + \frac{- 5625}{8}$

Step 3.3.1.2

Cancel the common factors.

Tap for more steps...

Step 3.3.1.2.1

Factor $2$ out of $16$ .

$\frac{2 \cdot 3125}{2 \cdot 8} + \frac{1250 i \sqrt{3}}{4} + \frac{- 5625}{8}$

Step 3.3.1.2.2

Cancel the common factor.

$\frac{2 \cdot 3125}{2 \cdot 8} + \frac{1250 i \sqrt{3}}{4} + \frac{- 5625}{8}$

Step 3.3.1.2.3

Rewrite the expression.

$\frac{3125}{8} + \frac{1250 i \sqrt{3}}{4} + \frac{- 5625}{8}$

Step 3.3.2

Cancel the common factor of $1250$ and $4$ .

Tap for more steps...

Step 3.3.2.1

Factor $2$ out of $1250 i \sqrt{3}$ .

$\frac{3125}{8} + \frac{2 (625 i \sqrt{3})}{4} + \frac{- 5625}{8}$

Step 3.3.2.2

Cancel the common factors.

Tap for more steps...

Step 3.3.2.2.1

Factor $2$ out of $4$ .

$\frac{3125}{8} + \frac{2 (625 i \sqrt{3})}{2 (2)} + \frac{- 5625}{8}$

Step 3.3.2.2.2

Cancel the common factor.

$\frac{3125}{8} + \frac{2 (625 i \sqrt{3})}{2 \cdot 2} + \frac{- 5625}{8}$

Step 3.3.2.2.3

Rewrite the expression.

$\frac{3125}{8} + \frac{625 i \sqrt{3}}{2} + \frac{- 5625}{8}$

Step 3.3.3

Move the negative in front of the fraction.

$\frac{3125}{8} + \frac{625 i \sqrt{3}}{2} - \frac{5625}{8}$

Step 3.4

Combine fractions.

Tap for more steps...

Step 3.4.1

Combine the numerators over the common denominator.

$\frac{3125 - 5625}{8} + \frac{625 i \sqrt{3}}{2}$

Step 3.4.2

Subtract $5625$ from $3125$ .

$\frac{- 2500}{8} + \frac{625 i \sqrt{3}}{2}$

Step 3.5

Simplify each term.

Tap for more steps...

Step 3.5.1

Cancel the common factor of $- 2500$ and $8$ .

Tap for more steps...

Step 3.5.1.1

Factor $4$ out of $- 2500$ .

$\frac{4 (- 625)}{8} + \frac{625 i \sqrt{3}}{2}$

Step 3.5.1.2

Cancel the common factors.

Tap for more steps...

Step 3.5.1.2.1

Factor $4$ out of $8$ .

$\frac{4 \cdot - 625}{4 \cdot 2} + \frac{625 i \sqrt{3}}{2}$

Step 3.5.1.2.2

Cancel the common factor.

$\frac{4 \cdot - 625}{4 \cdot 2} + \frac{625 i \sqrt{3}}{2}$

Step 3.5.1.2.3

Rewrite the expression.

$\frac{- 625}{2} + \frac{625 i \sqrt{3}}{2}$

Step 3.5.2

Move the negative in front of the fraction.

$- \frac{625}{2} + \frac{625 i \sqrt{3}}{2}$