Question

How do you solve `cos(theta)=15`?

Answer 1

`0.965925826`

Explanation:

`theta=15^@`

`:.cos theta=0.965925826`

On calculator `color(magenta)(hp 9s)`

type in 15 then press `color(magenta) cos`

Answer 2

impossible

Explanation:

cos t = 15
Cos t should < I1I, therefor, the equation is impossible.