- #1
ritagogna
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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