Question

How do you evaluate `arcsin(sqrt2/2)`?

Answer 1

Find arcsin (sqrt2/2)

Ans: `pi/4`and `(3pi)/4`

Explanation:

Trig table gives --> `sin x = sqrt2/2` -->`x = pi/4`

Trig unit circle gives another arc `x = (3pi)/4` that has the same sin value`((sqrt2)/2)`