Trigonometry Examples

$\arccos (\cos (- π)) = - π$

Step 1

The left side $3.14159265$ does not equal to the right side $- 3.14159265$ , which means that the given statement is false.

False

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