How do you solve 1-cos2x/cosx •cscx=tanx

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asked Dec 1, 2018 202k views

5 votes

How do you solve
1-cos2x/cosx •cscx=tanx

Mathematics
high-school

Xh Lin asked

by Xh Lin

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1 Answer

4 votes

(1-cos^2x/cosx)*cosecx
(sin^2x/cosx)*sinx (where 1-cos^2x=sin^2x) and 1/cscx=sinx

sinx/cosx=tanx(divide by sinx)
hence proved

Ali Humayun answered Dec 5, 2018

by Ali Humayun

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