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1. cotx-cosx/1-sinx= cotx

this is c3 nd u need to prove the left equals right side

also
(1+cosx)(cosecx-cotx)=sinx
2. (Original post by cheerupgrrl5:))
cotx-cosx/1-sinx= cotx

this is c3 nd u need to prove the left equals right side
thwer
also
(1+cosx)(cosecx-cotx)=sinx
There are always several ways of going about these!

For the 1st one, I would start with the LHS, multiply top and bottom of the fraction by 1+sinx and then sort things out.

For the 2nd, just multiply the bracket and see what comes out (2 terms will combine and simplify!)
3. (Original post by davros)
There are always several ways of going about these!

For the 1st one, I would start with the LHS, multiply top and bottom of the fraction by 1+sinx and then sort things out.

For the 2nd, just multiply the bracket and see what comes out (2 terms will combine and simplify!)

Ok thanks...i figured it out😄

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Updated: September 14, 2015
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