- #1

ritagogna

- 6

- 0

## Homework Statement

hey i really need some ones help i need to prove these 2 identities. I am in grade 12 and I've been working on these questions for almost 2 hours and keep failing pleasezz help

b. 1/1+sinx = sec2x - tanx/cosx

## Homework Equations

-secx=1/cosx

-tanx=sinx/cosx

-sin2x+cos2x=1

-cscx=1/sinx

## The Attempt at a Solution

So i tried proving the identity and got stuck...

i picked one side which was 1/1+sinx

then i got the conjugate

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

=1-sinx(1/sinx)

and this is where i have no idea what to do because i need to make it equal to sec2x-tanx/cosx