SOLUTION: i need to prove that these are equal..... cot^2x-1/1+cot^2x=1-2sin^2x

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Question 861255: i need to prove that these are equal..... cot^2x-1/1+cot^2x=1-2sin^2x
Answer by lwsshak3(11628)   (Show Source): You can put this solution on YOUR website!
prove that these are equal.....
cot^2x-1/1+cot^2x=1-2sin^2x

start with left side:

...

...

...
verified: left side=right side

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