SOLUTION: Verify each identity (1 over 1 + cosx) + ( 1 over 1 - cos x) = 2 csc^2 x

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Question 971395: Verify each identity
(1 over 1 + cosx) + ( 1 over 1 - cos x) = 2 csc^2 x
Found 2 solutions by lwsshak3, anand429:
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Verify each identity
(1 over 1 + cosx) + ( 1 over 1 - cos x) = 2 csc^2 x
start with left side:
%281%2F%281%2Bcosx%29%29%2B%281%2F%281-cosx%29%29
lcd:(1+cosx)(1-cosx)

verified: left side=right side

Answer by anand429(138) About Me  (Show Source):
You can put this solution on YOUR website!
1%2F%281%2Bcos%28x%29%29+%2B+1%2F%281-cos%28x%29%29
.
=+%281%2Bcos%28x%29+%2B+1-cos%28x%29%29%2F%281-cos%5E2%28x%29%29
.
=2%2Fsin%5E2%28x%29
= 2csc^2(x)