SOLUTION: Prove the identity: 1/1-tanx + 1/1+tanx =2/cos^2x
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Question 889484
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Prove the identity:
1/1-tanx + 1/1+tanx =2/cos^2x
Answer by
Alan3354(69443)
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Prove the identity:
1/(1-tanx) + 1/(1+tanx) = 2/cos^2x
2/(1 - tan^2) = 2/cos^2
1 - tan^2 = cos^2
Not an identity.