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## Homework Statement

We are being asked to evaluate the inverse trig function sin^-1 (1/ sqrt(2)).

## Homework Equations

## The Attempt at a Solution

I have no clue where to start. I have the unit circle, which makes sense to me if it was a trig function of a trig function, but when it's a trig function of a number not listed in a common unit circle diagram, I am thrown. Any guidance would be appreciated.