Question

How do you use a calculator to approximate `arcsin(3/4)`?

Answer 1

`48^@59; 131^@41`

Explanation:

`arcsin (3/4)`
Calculator gives:
`sin x = 3/4 = 0.75` --> arc `x = 48^@59`
Unit circle gives another arc x that has the same sin value:
`x = 180 - 48.59 = 131^@41`