Question

solve 1 + cosx over 1- cosx = 0

Answer 1

we have
\[\frac{1+\cos x}{1-\cos x}=0\]
1- cos x can't be infinity so
\[1+cos x=0\]
or
\[\cos x=-1\]
so
x=180, 540 , 900 and so on

Answer 2

What do you me by infinity?

Answer 3

Buster kitten infinity is a very large number, you know tan 90 is infinity. It's defined as
\[\frac{any\ number}{0}\]
so
\[\frac{1}{infinity}=0\]

Answer 4

@Busterkitten I'm sorry. Kept you waiting

Answer 5

nah, it's all good and thank you. Sorry if I may not be the sharpest tool in the shed.

Answer 6

@Busterkitten I feel you're a smart girl:)

Answer 7

Thanks, you seem very knowledgeable with math :D. Thanks for all of your help :D