Trigonometry Examples

$13^{2} = 12^{2} + 8^{2} - 2 \cdot 12 \cdot 8$

Step 1

The left side $169$ does not equal to the right side $16$ , which means that the given statement is false.

False

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