SOLUTION: Prove that 1-sin^2A/1+cosA=cosA

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Question 1036429: Prove that
1-sin^2A/1+cosA=cosA
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
(1-sin^2A)/(1+cosA) = cosA
cos^2/(1+cos) = cos
cos^2 = cos + cos^2
Not an identity.
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It's ambiguous. Add parentheses to clarify.