Question

True or False: tan^2x=1+cos2x/1-cos2x

Answer 1

Nevermind, just take my word for it that it's false.

Answer 2

tan(2x) ^2 = 1-cos2x/1+cos2x

Answer 3

:) alright thank you very much Angus

Answer 4

I think someone asked this here a while ago, let me see if I can find it...

Answer 5

Nevermind, I took it for something else. Buuuut...I found the proof for it if you're interested. I'm too tired to write it down. Goodnight.

http://www.enotes.com/homework-help/show-that-tan-2-x-1-cos-2x-1-cos-2x-381333

Answer 6

sweet i am :D thanks ^_^

Answer 7

and goodnight :)