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Author : kittie-lecroy | Published Date : 2016-04-25
TrigonometricIdentities1 page1 SampleProblemsProveeachofthefollowingidentities 1 tanxsinxcosxsecx 2 1 tanxtanx1 sinxcosx 3 sinxsinxcos2xsin3x 4 cos 1sin 1sin 5 cosx 1sinxcosx 1sinx