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## Homework Statement

csc(cos^-1 u)

## Homework Equations

Fundamental identities properties

## The Attempt at a Solution

The book is incredibly vague on how to do this. I tried multiplying csc by (cosθ/cosθ) to get cotθ*secθ. I'm not sure if this is the right thing to do, or what to do afterward if it is.

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