Question #12600134

Prove (sin4x - sin 2x)/(cos4x+cos2x) = tanx?

I've been poring over this question for over an hour and I still can't solve it. Help?

2013-12-19 04:08:39

TELL US , if you have any answer

Sponsored ads

There is NEVER a problem, ONLY a challange!

The helpinganswers.com is a free-to-use knowledgebase.
  The helpinganswers.com was started on: 02.07.2010.
  It's free to register. Once you are a registered user, you can ask questions, or answer them.
  (Unless registration you can just answer the questions anonymously)
  Only english!!! Questions and answers in other languages will be deleted!!

Cheers: the PixelFighters

  Contact: support@helpinganswers.com

C'mon... follow us!

Made by, history, ect.