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## Homework Statement

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

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- Thread starter zaddyzad
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- #1

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

- #2

Dick

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## 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.

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

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- #4

Dick

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This is a question in my university webwork, so I dont 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?

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