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April 20, 2015

April 20, 2015

Posted by **Kels.** on Thursday, March 8, 2012 at 12:50am.

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

Thanks!:)

- Trig Proofs! -
**Steve**, Thursday, March 8, 2012 at 12:20pmrecall that a^3 + b^3 = (a+b)(a^2 - ab + b^2)

cos^3 + sin^3 = (cos+sin)(cos^2 - sin*cos + sin^2)

look easier now?

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