Question

Question #ef7d0

Answer 1

`LHS=1/(1-sinx)`

`=(1+sinx)/((1-sinx)(1+sinx))`

`=(1+sinx)/(1-sin^2x)`

`=(1+sinx)/cos^2x`

`=1/cos^2x+sinx/cos^2x`

`=sec^2x +tanx secx=RHS`