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Prove identity.. Precalc help?

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Prove the identity:
(Sinx + cosx)^2 - 1 / cosx = (sin2x)(tanx)(cscx)

trigonometric-identities

asked Apr 23, 2014 in PRECALCULUS by anonymous

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1 Answer

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Consider the equation as .

L.H.S =

Multiply numerator and denominator by .

= R.H.S.

answered Apr 26, 2014 by lilly Expert

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