Question

How do you find the exact solution to arcsin (-1/ sqt 2)?

Answer 1

Find `arcsin (-1/sqrt2)`

Ans; (5pi)/4 and (7pi)/4

Explanation:

Trig table gives and trig unit circle give:

`sin x = - 1/sqrt2 = - sqrt2/2` --> arc `x = (5pi)/4` and `x = (7pi)/4`