Question

Select all that apply.

Answer 1

Values provided below

$\\ \tt\longmapsto sin180=0$

$\\ \tt\longmapsto cos270=cos90=0$

$\\ \tt\longmapsto csc360=1/0=\infty$

$\\ \tt\longmapsto tan90=\infty$

$\\ \tt\longmapsto cot90=0$

$\\ \tt\longmapsto sec270=\infty$

Note the rule

• Sin and cos is never undefined for any value