Wednesday
July 30, 2014

Homework Help: Mathematics - Trigonometric Identities

Posted by Anonymous on Saturday, November 10, 2007 at 9:14am.

Prove:
(tanx)(sinx) / (tanx) + (sinx) = (tanx) - (sinx) / (tanx)(sinx)



What I have so far:

L.S.
= (sinx / cosx) sinx / (sinx / cosx) + sinx
= (sin^2x / cosx) / (sinx + (sinx) (cosx) / cosx)
= (sin^2x / cosx) / (cosx / sinx + sinxcosx)

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