Question

Can someone check these Trigonometric identities?

Answer 1

\[\cos(\frac{ \pi }{ 2 } - \theta) = \sin \theta\]
\[\csc(\frac{ \pi }{ 2 } - \theta) = \sec \theta\]
and vice versa?

Answer 2

yes true :)

Answer 3

Ah okay. Haha some much stuff to memorize.