SOLUTION: Can you help me with this problem? How to find cscθ, if θ=cos^-1(-4/5)? Thank you.

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Question 1144167: Can you help me with this problem?
How to find cscθ, if θ=cos^-1(-4/5)?
Thank you.
Answer by ikleyn(52799)   (Show Source): You can put this solution on YOUR website!
.

The fact that  θ=cos^-1(-4/5)  means  that  cos(θ) =   and  in the angle in QII.


Then  csc(θ) =  =  =  =  =  =  = .    ANSWER


Notice that the final answer is positive, since both sine and csc functions are positive in QII.



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