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posted by Kate on Sunday, July 17, 2011 at 7:01pm.
Prove each of the following identities. a)tan^2x = 1 – cos^2x/cos^2x b)sinx/1 – sin^2x = tanx/cosx
a) RS = sin^2x/cos^2x = LS b) LS = sinx/cos^2x = (sinx/cosx)/cosx = tanx/cosx = RS
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