Originally Posted by

**homeylova223** Right now I have two more problems that are similar to the ones I just did can anyone help me with these?

It is like this

(1+tanx)/(sinx+cosx)= secx

(secx)/(1)=secx ... no, 1+tanx is not secx, 1 + tan^2x = sec^2x. also sinx+cosx is not 1, it's sin^2x+cos^2x = 1

(1/cosx/1)= secx

secx=secx

Did I do this right?

My second problem is

sinx+cosx= (2 sin^2x-1)/(sinx-cosx) I am not sure how to this one

on the RHS, numerator ... 2sin^2x - 1 = 2sin^2x - (sin^2x + cos^2x) = sin^2x - cos^2x ... which will factor.