Trigonometry Examples

$\arcsin (\frac{1}{\sqrt{5}}) + \arcsin (\frac{2}{\sqrt{5}}) = 90$

The left side $1.57079632$ does not equal to the right side $90$ , which means that the given statement is false.

False

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