Question:

1-tan^2/1+tan^2 = cos^2- sin^2...pls prove?

by  |  earlier

0 LIKES UnLike

1-tan^2/1+tan^2 = cos^2- sin^2...pls prove?

 Tags:

   Report
Answer The Question I've Same Question Too

1 ANSWERS

Sort By: Date  |  Rating

  1. L.H.S

    1-tan^2                  

    ...............    

    1+tan^2  

                                       1 - sin^2  / cos^2

                                  =    ...................................

                                       1 + sin^2  / cos^2

                                     cos^2 -sin^2 /cos^2

                               =        ...................................

                                      cos^2 + sin^2  / cos^2

                                     cos^2 -sin^2 /cos^2

                              =      ......................................

                                               1 / cos^2

                              =          cos^2 - sin^2 (hence proved)

You're reading: 1-tan^2/1+tan^2 = cos^2- sin^2...pls prove?

Question Stats

Latest activity: earlier.
This question has 1 answers.

BECOME A GUIDE

Share your knowledge and help people by answering questions.
Register Now