How do you prove #cosx- (cosx/(1-tanx))= (sinxcosx)/(sinx-cosx)#?
1 Answer
Feb 17, 2016
Please see below for the proof. Feel free to ask questions if you have any.
Explanation:
1) replace tanx with
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2) equalise the denominator in the paranthesis
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3) equalise the denominator once more
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4) put the denominator into -1 paranthesis
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5) - divided by - yields +. And change the places of cosx and sinx in the denominator
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