How do I find the exact value of sin^-1(-9)?

zaddyzad · Sep 21, 2013

Homework Statement

How would I find the exact value of sin^-1 (-9) in degrees. I have no idea how to do this.

Dick · Sep 21, 2013

zaddyzad said:

Homework Statement

How would I find the exact value of sin^-1 (-9) in degrees. I have no idea how to do this.

There's no such value. sin^(-1) only takes arguments between -1 and 1.

zaddyzad · Sep 21, 2013

This is a question in my university webwork, so I don't know if they'd give a question that wouldn't have an answer.

Dick · Sep 21, 2013

zaddyzad said:

This is a question in my university webwork, so I don't know if they'd give a question that wouldn't have an answer.

There must be some mistake then. I'd speak to the authorities. sin^(-1) does mean arcsin, yes?