Trigonometry Examples

$\frac{{(2 + 2 i)}^{5} {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 1

Use the Binomial Theorem.

$\frac{(2^{5} + 5 \cdot 2^{4} (2 i) + 10 \cdot 2^{3} {(2 i)}^{2} + 10 \cdot 2^{2} {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2

Simplify each term.

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Step 2.1

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

$\frac{(32 + 5 \cdot 2^{4} (2 i) + 10 \cdot 2^{3} {(2 i)}^{2} + 10 \cdot 2^{2} {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.2

Multiply $2^{4}$ by $2$ by adding the exponents.

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Step 2.2.1

Move $2$ .

$\frac{(32 + 5 \cdot (2 \cdot 2^{4}) i + 10 \cdot 2^{3} {(2 i)}^{2} + 10 \cdot 2^{2} {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.2.2

Multiply $2$ by $2^{4}$ .

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Step 2.2.2.1

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

$\frac{(32 + 5 \cdot (2^{1} \cdot 2^{4}) i + 10 \cdot 2^{3} {(2 i)}^{2} + 10 \cdot 2^{2} {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.2.2.2

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

$\frac{(32 + 5 \cdot 2^{1 + 4} i + 10 \cdot 2^{3} {(2 i)}^{2} + 10 \cdot 2^{2} {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.2.3

Add $1$ and $4$ .

$\frac{(32 + 5 \cdot 2^{5} i + 10 \cdot 2^{3} {(2 i)}^{2} + 10 \cdot 2^{2} {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.3

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

$\frac{(32 + 5 \cdot 32 i + 10 \cdot 2^{3} {(2 i)}^{2} + 10 \cdot 2^{2} {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.4

Multiply $5$ by $32$ .

$\frac{(32 + 160 i + 10 \cdot 2^{3} {(2 i)}^{2} + 10 \cdot 2^{2} {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.5

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

$\frac{(32 + 160 i + 10 \cdot 8 {(2 i)}^{2} + 10 \cdot 2^{2} {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.6

Multiply $10$ by $8$ .

$\frac{(32 + 160 i + 80 {(2 i)}^{2} + 10 \cdot 2^{2} {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.7

Apply the product rule to $2 i$ .

$\frac{(32 + 160 i + 80 (2^{2} i^{2}) + 10 \cdot 2^{2} {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.8

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

$\frac{(32 + 160 i + 80 (4 i^{2}) + 10 \cdot 2^{2} {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.9

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

$\frac{(32 + 160 i + 80 (4 \cdot - 1) + 10 \cdot 2^{2} {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.10

Multiply $80 (4 \cdot - 1)$ .

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Step 2.10.1

Multiply $4$ by $- 1$ .

$\frac{(32 + 160 i + 80 \cdot - 4 + 10 \cdot 2^{2} {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.10.2

Multiply $80$ by $- 4$ .

$\frac{(32 + 160 i - 320 + 10 \cdot 2^{2} {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.11

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

$\frac{(32 + 160 i - 320 + 10 \cdot 4 {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.12

Multiply $10$ by $4$ .

$\frac{(32 + 160 i - 320 + 40 {(2 i)}^{3} + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.13

Apply the product rule to $2 i$ .

$\frac{(32 + 160 i - 320 + 40 (2^{3} i^{3}) + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.14

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

$\frac{(32 + 160 i - 320 + 40 (8 i^{3}) + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.15

Factor out $i^{2}$ .

$\frac{(32 + 160 i - 320 + 40 (8 (i^{2} \cdot i)) + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.16

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

$\frac{(32 + 160 i - 320 + 40 (8 (- 1 \cdot i)) + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.17

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

$\frac{(32 + 160 i - 320 + 40 (8 (- i)) + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.18

Multiply $- 1$ by $8$ .

$\frac{(32 + 160 i - 320 + 40 (- 8 i) + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.19

Multiply $- 8$ by $40$ .

$\frac{(32 + 160 i - 320 - 320 i + 5 \cdot 2 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.20

Multiply $5$ by $2$ .

$\frac{(32 + 160 i - 320 - 320 i + 10 {(2 i)}^{4} + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.21

Apply the product rule to $2 i$ .

$\frac{(32 + 160 i - 320 - 320 i + 10 (2^{4} i^{4}) + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.22

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

$\frac{(32 + 160 i - 320 - 320 i + 10 (16 i^{4}) + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.23

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

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Step 2.23.1

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

$\frac{(32 + 160 i - 320 - 320 i + 10 (16 {(i^{2})}^{2}) + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.23.2

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

$\frac{(32 + 160 i - 320 - 320 i + 10 (16 {(- 1)}^{2}) + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.23.3

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

$\frac{(32 + 160 i - 320 - 320 i + 10 (16 \cdot 1) + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.24

Multiply $10 (16 \cdot 1)$ .

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Step 2.24.1

Multiply $16$ by $1$ .

$\frac{(32 + 160 i - 320 - 320 i + 10 \cdot 16 + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.24.2

Multiply $10$ by $16$ .

$\frac{(32 + 160 i - 320 - 320 i + 160 + {(2 i)}^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.25

Apply the product rule to $2 i$ .

$\frac{(32 + 160 i - 320 - 320 i + 160 + 2^{5} i^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.26

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

$\frac{(32 + 160 i - 320 - 320 i + 160 + 32 i^{5}) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.27

Factor out $i^{4}$ .

$\frac{(32 + 160 i - 320 - 320 i + 160 + 32 (i^{4} i)) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.28

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

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Step 2.28.1

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

$\frac{(32 + 160 i - 320 - 320 i + 160 + 32 ({(i^{2})}^{2} i)) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.28.2

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

$\frac{(32 + 160 i - 320 - 320 i + 160 + 32 ({(- 1)}^{2} i)) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.28.3

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

$\frac{(32 + 160 i - 320 - 320 i + 160 + 32 (1 i)) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 2.29

Multiply $i$ by $1$ .

$\frac{(32 + 160 i - 320 - 320 i + 160 + 32 i) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 3

Subtract $320$ from $32$ .

$\frac{(- 288 + 160 i - 320 i + 160 + 32 i) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 4

Add $- 288$ and $160$ .

$\frac{(- 128 + 160 i - 320 i + 32 i) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 5

Subtract $320 i$ from $160 i$ .

$\frac{(- 128 - 160 i + 32 i) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 6

Add $- 160 i$ and $32 i$ .

$\frac{(- 128 - 128 i) {(- 3 + 3 i)}^{3}}{{(\sqrt{3} + i)}^{10}}$

Step 7

Use the Binomial Theorem.

$\frac{(- 128 - 128 i) ({(- 3)}^{3} + 3 {(- 3)}^{2} (3 i) + 3 \cdot - 3 {(3 i)}^{2} + {(3 i)}^{3})}{{(\sqrt{3} + i)}^{10}}$

Step 8

Simplify each term.

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Step 8.1

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

$\frac{(- 128 - 128 i) (- 27 + 3 {(- 3)}^{2} (3 i) + 3 \cdot - 3 {(3 i)}^{2} + {(3 i)}^{3})}{{(\sqrt{3} + i)}^{10}}$

Step 8.2

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

$\frac{(- 128 - 128 i) (- 27 + 3 \cdot 9 (3 i) + 3 \cdot - 3 {(3 i)}^{2} + {(3 i)}^{3})}{{(\sqrt{3} + i)}^{10}}$

Step 8.3

Multiply $3$ by $9$ .

$\frac{(- 128 - 128 i) (- 27 + 27 (3 i) + 3 \cdot - 3 {(3 i)}^{2} + {(3 i)}^{3})}{{(\sqrt{3} + i)}^{10}}$

Step 8.4

Multiply $3$ by $27$ .

$\frac{(- 128 - 128 i) (- 27 + 81 i + 3 \cdot - 3 {(3 i)}^{2} + {(3 i)}^{3})}{{(\sqrt{3} + i)}^{10}}$

Step 8.5

Multiply $3$ by $- 3$ .

$\frac{(- 128 - 128 i) (- 27 + 81 i - 9 {(3 i)}^{2} + {(3 i)}^{3})}{{(\sqrt{3} + i)}^{10}}$

Step 8.6

Apply the product rule to $3 i$ .

$\frac{(- 128 - 128 i) (- 27 + 81 i - 9 (3^{2} i^{2}) + {(3 i)}^{3})}{{(\sqrt{3} + i)}^{10}}$

Step 8.7

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

$\frac{(- 128 - 128 i) (- 27 + 81 i - 9 (9 i^{2}) + {(3 i)}^{3})}{{(\sqrt{3} + i)}^{10}}$

Step 8.8

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

$\frac{(- 128 - 128 i) (- 27 + 81 i - 9 (9 \cdot - 1) + {(3 i)}^{3})}{{(\sqrt{3} + i)}^{10}}$

Step 8.9

Multiply $- 9 (9 \cdot - 1)$ .

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Step 8.9.1

Multiply $9$ by $- 1$ .

$\frac{(- 128 - 128 i) (- 27 + 81 i - 9 \cdot - 9 + {(3 i)}^{3})}{{(\sqrt{3} + i)}^{10}}$

Step 8.9.2

Multiply $- 9$ by $- 9$ .

$\frac{(- 128 - 128 i) (- 27 + 81 i + 81 + {(3 i)}^{3})}{{(\sqrt{3} + i)}^{10}}$

Step 8.10

Apply the product rule to $3 i$ .

$\frac{(- 128 - 128 i) (- 27 + 81 i + 81 + 3^{3} i^{3})}{{(\sqrt{3} + i)}^{10}}$

Step 8.11

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

$\frac{(- 128 - 128 i) (- 27 + 81 i + 81 + 27 i^{3})}{{(\sqrt{3} + i)}^{10}}$

Step 8.12

Factor out $i^{2}$ .

$\frac{(- 128 - 128 i) (- 27 + 81 i + 81 + 27 (i^{2} \cdot i))}{{(\sqrt{3} + i)}^{10}}$

Step 8.13

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

$\frac{(- 128 - 128 i) (- 27 + 81 i + 81 + 27 (- 1 \cdot i))}{{(\sqrt{3} + i)}^{10}}$

Step 8.14

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

$\frac{(- 128 - 128 i) (- 27 + 81 i + 81 + 27 (- i))}{{(\sqrt{3} + i)}^{10}}$

Step 8.15

Multiply $- 1$ by $27$ .

$\frac{(- 128 - 128 i) (- 27 + 81 i + 81 - 27 i)}{{(\sqrt{3} + i)}^{10}}$

Step 9

Add $- 27$ and $81$ .

$\frac{(- 128 - 128 i) (54 + 81 i - 27 i)}{{(\sqrt{3} + i)}^{10}}$

Step 10

Subtract $27 i$ from $81 i$ .

$\frac{(- 128 - 128 i) (54 + 54 i)}{{(\sqrt{3} + i)}^{10}}$

Step 11

Expand $(- 128 - 128 i) (54 + 54 i)$ using the FOIL Method.

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Step 11.1

Apply the distributive property.

$\frac{- 128 (54 + 54 i) - 128 i (54 + 54 i)}{{(\sqrt{3} + i)}^{10}}$

Step 11.2

Apply the distributive property.

$\frac{- 128 \cdot 54 - 128 (54 i) - 128 i (54 + 54 i)}{{(\sqrt{3} + i)}^{10}}$

Step 11.3

Apply the distributive property.

$\frac{- 128 \cdot 54 - 128 (54 i) - 128 i \cdot 54 - 128 i (54 i)}{{(\sqrt{3} + i)}^{10}}$

Step 12

Simplify and combine like terms.

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Step 12.1

Simplify each term.

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Step 12.1.1

Multiply $- 128$ by $54$ .

$\frac{- 6912 - 128 (54 i) - 128 i \cdot 54 - 128 i (54 i)}{{(\sqrt{3} + i)}^{10}}$

Step 12.1.2

Multiply $54$ by $- 128$ .

$\frac{- 6912 - 6912 i - 128 i \cdot 54 - 128 i (54 i)}{{(\sqrt{3} + i)}^{10}}$

Step 12.1.3

Multiply $54$ by $- 128$ .

$\frac{- 6912 - 6912 i - 6912 i - 128 i (54 i)}{{(\sqrt{3} + i)}^{10}}$

Step 12.1.4

Multiply $- 128 i (54 i)$ .

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Step 12.1.4.1

Multiply $54$ by $- 128$ .

$\frac{- 6912 - 6912 i - 6912 i - 6912 i i}{{(\sqrt{3} + i)}^{10}}$

Step 12.1.4.2

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

$\frac{- 6912 - 6912 i - 6912 i - 6912 (i^{1} i)}{{(\sqrt{3} + i)}^{10}}$

Step 12.1.4.3

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

$\frac{- 6912 - 6912 i - 6912 i - 6912 (i^{1} i^{1})}{{(\sqrt{3} + i)}^{10}}$

Step 12.1.4.4

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

$\frac{- 6912 - 6912 i - 6912 i - 6912 i^{1 + 1}}{{(\sqrt{3} + i)}^{10}}$

Step 12.1.4.5

Add $1$ and $1$ .

$\frac{- 6912 - 6912 i - 6912 i - 6912 i^{2}}{{(\sqrt{3} + i)}^{10}}$

Step 12.1.5

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

$\frac{- 6912 - 6912 i - 6912 i - 6912 \cdot - 1}{{(\sqrt{3} + i)}^{10}}$

Step 12.1.6

Multiply $- 6912$ by $- 1$ .

$\frac{- 6912 - 6912 i - 6912 i + 6912}{{(\sqrt{3} + i)}^{10}}$

Step 12.2

Add $- 6912$ and $6912$ .

$\frac{0 - 6912 i - 6912 i}{{(\sqrt{3} + i)}^{10}}$

Step 12.3

Subtract $6912 i$ from $0$ .

$\frac{- 6912 i - 6912 i}{{(\sqrt{3} + i)}^{10}}$

Step 12.4

Subtract $6912 i$ from $- 6912 i$ .

$\frac{- 13824 i}{{(\sqrt{3} + i)}^{10}}$

Step 13

Move the negative in front of the fraction.

$- \frac{13824 i}{{(\sqrt{3} + i)}^{10}}$