Question

Verify the identity. 1-sinx/cosx=cosx/1+sinx

Answer 1

@mathslover any idea?

Answer 2

I cant do trig >.< i terrible at it ~ sorry wish i cud help :/

Answer 3

@arabpride know anyone that could?

Answer 4

@*Insert Name Here*

Answer 5

Multiply by the conjugate

Answer 6

sorry but what part is the conjugate, (I'm really bad at pre calc)

Answer 7

You have \(\Large \frac{1-sinx}{cosx}=\frac{cos}{1+sinx}\) Correct?
Multiply by \(1+sinx\)

\(\Large \frac{1-sin^2 x}{(cosx)(1+sinx)}\)
Use the identity \(sin^2x+cos^2=1\) here
So you end up with \(\Large \frac{cos^2x}{cosx(1+sinx)}\)
Cancel a cos from the top and bottom leaving you with

\(\Large \frac{cosx}{1+sinx}=\frac{cosx}{1+sinx}\)

Answer 8

Make sense?

Answer 9

yes perfect sense, THANK YOU!!

Answer 10

You're welcome~