Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number

022-62211530

Mon to Sat - 11 AM to 8 PM

trigonometry.

Asked by khushal305 29th September 2009, 8:50 PM
Answered by Expert
Answer:

We have not understood the query that you have posted. We would request you to clarify whether it is cos square or cos 2
cos2 θ  - sin2 θ = tan2 Φ , prove that cos Φ =             1              .

                                                                                    2 cos θ

  so that we may answer this to the best of the ability.

Answered by Expert 25th November 2009, 11:23 AM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!

Chat with us on WhatsApp