Question

ayuddddaaaaaaaaaaaa ​

Answer 1

$= \sin( \frac{\pi}{2} ) \\ = \sin(90) \\ = 1 \\ = \cot( \frac{\pi}{2} ) \\ = \cot(90) \\ = 0 \\ \cos( \frac{3\pi}{2} ) \\ = \cos(270) \\ = 0 \\ \csc( \frac{3\pi}{2} ) \\ = \csc(270) \\ = - 1 \\ \csc( \frac{\pi}{2} ) \\ = \csc(90) \\ = 1 \\ \sec(\pi) \\ = \sec(180) \\ = - 1$

sabiendo que pi vale 180°