SOLUTION: I need help proving this trigonometric function. cos^2x + (tan^2x)(cos^2x)=1

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Question 753354: I need help proving this trigonometric function.
cos^2x + (tan^2x)(cos^2x)=1



Found 2 solutions by stanbon, solver91311:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
I need help solving this trigonometric function.
cos^2x + (tan^2x)(cos^2x)=1
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cos^2 + [sin^2/cos^2)(cos^2) = 1
---
cos^2 + sin^2 = 1
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True
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Cheers,
Stan H.
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Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!


Do you mean that you need help proving the trigonometric identity?

John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
The Out Campaign: Scarlet Letter of Atheism


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