Results 1 to 4 of 4

Math Help - Trig Identities

  1. #1
    Newbie
    Joined
    Nov 2008
    Posts
    10

    Trig Identities

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

    Prove they equal each other
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Member
    Joined
    Oct 2007
    Posts
    178
    I think you missed typed your question.

    You mean this \frac{(1+(1-tan^2(x))}{(1+(tan^2(x))} = cos^2(x)
    right?

    As per your question, use this formula 1 + tan^2x = sec^2xand this formula cos^2x = 1- sin^2x
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Nov 2008
    Posts
    10
    Nope, I didn't type it wrong, it is the original equation
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Senior Member
    Joined
    Dec 2007
    From
    Melbourne
    Posts
    428
    As Truthbetold noticed already (it was apparent before he edited his post), the question is wrong. The expressions you have entered do not equal each other.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Trig Identities
    Posted in the Calculus Forum
    Replies: 2
    Last Post: December 3rd 2009, 06:44 AM
  2. Trig identities
    Posted in the Trigonometry Forum
    Replies: 6
    Last Post: June 22nd 2009, 06:58 AM
  3. Trig Identities
    Posted in the Pre-Calculus Forum
    Replies: 3
    Last Post: November 9th 2008, 04:35 PM
  4. Trig Identities
    Posted in the Trigonometry Forum
    Replies: 2
    Last Post: November 7th 2008, 08:25 PM
  5. Trig Identities Help!!!!
    Posted in the Trigonometry Forum
    Replies: 2
    Last Post: April 14th 2008, 11:47 AM

Search Tags


/mathhelpforum @mathhelpforum