SOLUTION: (cscx+1)(cscx-1)/cot^2x=? I have no clue what to do on these my text book is no help All help is greatly appreciated.

Question 1014627: (cscx+1)(cscx-1)/cot^2x=?
I have no clue what to do on these my text book is no help
All help is greatly appreciated.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
(cscx+1)(cscx-1)/cot^2x=?
--------
= (csc^2(x)-1)/cot^2(x) = ?
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Note:: sin^2 + cos^2 = 1
Divide thru by sin^2 to get:
1 + cot^2 = csc^2
So,csc^2-1 = cot^2
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Back to your problem::
= cot^2(x)/cot^2(x)
====
= 1
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Cheers,
Stan H.
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