Trigonometry Examples

$\sqrt{\frac{13 (26 + 5 \sqrt{26})}{26}}$

Step 1

Reduce the expression $\frac{13 (26 + 5 \sqrt{26})}{26}$ by cancelling the common factors.

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Step 1.1

Factor $13$ out of $26$ .

$\sqrt{\frac{13 (26 + 5 \sqrt{26})}{13 \cdot 2}}$

Step 1.2

Cancel the common factor.

$\sqrt{\frac{13 (26 + 5 \sqrt{26})}{13 \cdot 2}}$

Step 1.3

Rewrite the expression.

$\sqrt{\frac{26 + 5 \sqrt{26}}{2}}$

Step 2

Rewrite $\sqrt{\frac{26 + 5 \sqrt{26}}{2}}$ as $\frac{\sqrt{26 + 5 \sqrt{26}}}{\sqrt{2}}$ .

$\frac{\sqrt{26 + 5 \sqrt{26}}}{\sqrt{2}}$

Step 3

Multiply $\frac{\sqrt{26 + 5 \sqrt{26}}}{\sqrt{2}}$ by $\frac{\sqrt{2}}{\sqrt{2}}$ .

$\frac{\sqrt{26 + 5 \sqrt{26}}}{\sqrt{2}} \cdot \frac{\sqrt{2}}{\sqrt{2}}$

Step 4

Combine and simplify the denominator.

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Step 4.1

Multiply $\frac{\sqrt{26 + 5 \sqrt{26}}}{\sqrt{2}}$ by $\frac{\sqrt{2}}{\sqrt{2}}$ .

$\frac{\sqrt{26 + 5 \sqrt{26}} \sqrt{2}}{\sqrt{2} \sqrt{2}}$

Step 4.2

Raise $\sqrt{2}$ to the power of $1$ .

$\frac{\sqrt{26 + 5 \sqrt{26}} \sqrt{2}}{{\sqrt{2}}^{1} \sqrt{2}}$

Step 4.3

Raise $\sqrt{2}$ to the power of $1$ .

$\frac{\sqrt{26 + 5 \sqrt{26}} \sqrt{2}}{{\sqrt{2}}^{1} {\sqrt{2}}^{1}}$

Step 4.4

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

$\frac{\sqrt{26 + 5 \sqrt{26}} \sqrt{2}}{{\sqrt{2}}^{1 + 1}}$

Step 4.5

Add $1$ and $1$ .

$\frac{\sqrt{26 + 5 \sqrt{26}} \sqrt{2}}{{\sqrt{2}}^{2}}$

Step 4.6

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

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Step 4.6.1

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

$\frac{\sqrt{26 + 5 \sqrt{26}} \sqrt{2}}{{(2^{\frac{1}{2}})}^{2}}$

Step 4.6.2

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

$\frac{\sqrt{26 + 5 \sqrt{26}} \sqrt{2}}{2^{\frac{1}{2} \cdot 2}}$

Step 4.6.3

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

$\frac{\sqrt{26 + 5 \sqrt{26}} \sqrt{2}}{2^{\frac{2}{2}}}$

Step 4.6.4

Cancel the common factor of $2$ .

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Step 4.6.4.1

Cancel the common factor.

$\frac{\sqrt{26 + 5 \sqrt{26}} \sqrt{2}}{2^{\frac{2}{2}}}$

Step 4.6.4.2

Rewrite the expression.

$\frac{\sqrt{26 + 5 \sqrt{26}} \sqrt{2}}{2^{1}}$

Step 4.6.5

Evaluate the exponent.

$\frac{\sqrt{26 + 5 \sqrt{26}} \sqrt{2}}{2}$

Step 5

Combine using the product rule for radicals.

$\frac{\sqrt{(26 + 5 \sqrt{26}) \cdot 2}}{2}$

Step 6

The result can be shown in multiple forms.

Exact Form:

$\frac{\sqrt{(26 + 5 \sqrt{26}) \cdot 2}}{2}$

Decimal Form:

$5.07420425 \dots$