Question

How do you find the angle `alpha` such that `0<=alpha<=90` and `cscalpha=1.313`?

Answer 1

`49.61^@`

Explanation:

`•color(white)(x)cscx=1/sinx`

`cscalpha=1.313`

`rArrsinalpha=1/1.313`

`rArralpha=sin^-1(1/1.313)~~ 49.61^@`