How do you prove $Sinx/Cosx+Cosx/Sinx = (Sin^2xCos^2x)/(CosxSinx)$ ?

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Answer 1 · 2015-04-29T16:41:26

I'm not sure but I think that the proof is not valid.
Because it turns out that,

$sinx/cosx+cosx/sinx= (sin^2x+cos^2x)/(cosxsinx) -=1/(cosxsinx)$

From the identity $sin^2x+cos^2x=1$

How do you prove Sinx/Cosx+Cosx/Sinx = (Sin^2xCos^2x)/(CosxSinx)Sinx/Cosx+Cosx/Sinx = (Sin^2xCos^2x)/(CosxSinx)?