Results 1 to 3 of 3

Math Help - Identities

  1. #1
    Junior Member
    Joined
    Apr 2007
    Posts
    43

    Identities

    Find an expression that completes the identity.

    1-sinU/cosU - cosU/1+sinU = ?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    A riddle wrapped in an enigma
    masters's Avatar
    Joined
    Jan 2008
    From
    Big Stone Gap, Virginia
    Posts
    2,551
    Thanks
    12
    Awards
    1
    Quote Originally Posted by jumpman23 View Post
    Find an expression that completes the identity.

    1-sinU/cosU - cosU/1+sinU = ?
    Hi jumpman23,

    \frac{1-\sin u}{\cos u}-\frac{\cos u}{1+\sin u}=\frac{1-\sin^2 u-\cos^2 u}{\cos u(1+\sin u)}=\frac{\cos^2 u-\cos^2 u}{\cos u(1+\sin u)}=\frac{0}{\cos u(1+\sin u)}=0
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Junior Member
    Joined
    Apr 2007
    Posts
    43
    thank you
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 6
    Last Post: June 23rd 2010, 12:59 AM
  2. Identities
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: March 7th 2010, 11:19 PM
  3. Identities
    Posted in the Trigonometry Forum
    Replies: 4
    Last Post: March 7th 2010, 06:39 PM
  4. set identities
    Posted in the Discrete Math Forum
    Replies: 5
    Last Post: April 12th 2009, 03:57 PM
  5. Identities help...
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: November 13th 2008, 08:30 AM

Search Tags


/mathhelpforum @mathhelpforum