Question

Question #dfc20

Answer 1

`cscx/(cotx+tanx)=cosx`

Explanation:

`cscx/(cotx+tanx)`

`rarr(1/sinx)/(cosx/sinx+sinx/cosx)`

`rarr(1/sinx)/((sin^2x+cos^2x)/(sinx*cosx)`

`rarr(1/sinx)/(1/(sinx*cosx)`

`rarr1/(1/cosx)=cosx`