Trigonometry Examples

$\cos (- 170) = \cos (10)$

Step 1

The left side $- 0.98480775$ does not equal to the right side $0.98480775$ , which means that the given statement is false.

False

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