SOLUTION: cosx+tanx(sinx)=secx

SOLUTION: cosx+tanx(sinx)=secx

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Question 206719: cosx+tanx(sinx)=secx
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
cosx+tanx(sinx)=secx
cosx+(sinx/cosx)(sinx)=secx
cosx + sin^2x/cosx -= 1/cosx
(cos^2x + sin^2x)/ cosx = 1/cosx
(cos^2x + sin^2x) = 1
Which is a trig identity
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