Question

Prove the following identity:
1-sinx/(sinx*cotx) = cosx/(1 + sinx)

Answer 1

Change cot x = cos x/sin x on the left side

Answer 2

So the left side is just (1 - sin x)/cos x

Answer 3

yeah

Answer 4

Now, all what you have to do, is to show that the left side, (1-sin x)/cos x is equal to the right side cos x/(1+sin x)

Answer 5

Thats hould not be hard to show at all.

Answer 6

thanks

Answer 7

ok.

Answer 8

cannot move anything to the right hand side since you didn't prove it yet. have to go from one side to another. Cannot assume that equation is correct and then prove some "correct" thing. It's nonsense