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December 20, 2014

December 20, 2014

Posted by **E** on Thursday, March 8, 2012 at 12:03am.

cos^3+sin^3/cosx+sinx = 1-sinxcosx

- Math -
**MathMate**, Thursday, March 8, 2012 at 5:13pmAre you trying to prove the identity?

You can use the following algebraic identity:

a^3+b^3=(a+b)(a^2-ab+b^2)

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