Question

What are the six trig function values of `-90`?

Answer 1

Please see below.

Explanation:

`sin(-90^0)==-sin90^0=-1`

`cos(-90^0)==cos90^0=0`

`tan(-90^0)==-tan90^0=` undefined

`csc(-90^0)==-csc90^0=-1`

`sec(-90^0)==sec90^0=` undefined

`cot(-90^0)==-cot90^0=0`