Question

Help please....
x+y=TT
Find (1-cosX)/(1+cosy)

Answer 1

is that a pi symbol perhaps?

Answer 2

ohhhhhhhhhhhhhhhh

Answer 3

i was looking for some sort of double angle formula.

Answer 4

Hmmm...smart :P:P:P:P:P YES IT IS!!! :)

Answer 5

Oops sorry ^_^

Answer 6

1-cos(x)
------------ then
1 + cos(pi - x)

Answer 7

then you get 1, yes?

Answer 8

you should lol

Answer 9

OMG!!! That was it? OMG!!! Where's my brain :$:$ :S :(

Answer 10

\[cos(\pi-x)=cos(\pi)cos(x)+sin(\pi)sin(x)=-cos(x)\]

Answer 11

Thanks :)

Answer 12

i wrote that for myself, but it is a basic fact that \[cos(\pi-x)=-cos(x)\]

Answer 13

yea...I H* trigonometry :(:(

Answer 14

h8*

Answer 15

yeah and it only gets worse!