- #1

richyw

- 180

- 0

## Homework Statement

Find [itex]\sin^{-1}(-2)[/itex] by writing [tex]sin w = -2[/itex] and using the rectangular representation of [itex]\sin w[/itex]

## Homework Equations

Rectangular representation of [itex]\sin w[/itex]

## The Attempt at a Solution

I think my biggest problem here is I have literally no idea what the "rectangular representation of [itex]\sin w[/itex] is.

My textbook has this formula [itex] sin(x)=\sin(x)\cosh(y)+i\cos(x)\sinh(y)[/itex]. Other than that, I am sure where to start here really. I can get the answer using the formula for arcsin, but not from starting with sin...