Trigonometry Examples

$\sqrt{8^{2} - 7^{2}}$

Step 1

Raise $8$ to the power of $2$ .

$\sqrt{64 - 7^{2}}$

Step 2

Raise $7$ to the power of $2$ .

$\sqrt{64 - 1 \cdot 49}$

Step 3

Multiply $- 1$ by $49$ .

$\sqrt{64 - 49}$

Step 4

Subtract $49$ from $64$ .

$\sqrt{15}$

Step 5

The result can be shown in multiple forms.

Exact Form:

$\sqrt{15}$

Decimal Form:

$3.87298334 \dots$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$