Question

How do you evaluate `arcsin 0.5625`?

Answer 1

`34^@23, 145^@77`

Explanation:

Use calculator and unit circle -->
sin x = 0.5625 -->
There are 2 arcs that have the same sin value -->
arc `x = 34^@23` and arc `x = (180 - 34.23) = 145^@77`