Page 2 of 2 FirstFirst 12
Results 16 to 16 of 16

Thread: Simplifying trigonometric expressions

  1. July 8th 2008, 05:48 PM #16
    Stevo_Evo_22
    Stevo_Evo_22 is offline
    Junior Member
    Joined
    Dec 2007
    Posts
    59
    Ok so:

    sin^3 \theta - cos^3 \theta
    ------------------
    sin^2 \theta - cos^2 \theta

    =

    sin^2 \theta-sin \thetacos \theta + cos^2 \theta
    --------------------------
    sin \theta + cos \theta

    =

    1+sin \thetacos \theta
    ----------------
    sin \theta + cos \theta

    EDIT: Sorry! I realised i factorised it wrong! But the book still says it's wrong! Don't worry though, I think the book is wrong, thanks for te enormous help!
    Last edited by Stevo_Evo_22; July 8th 2008 at 06:35 PM. Reason: Factorised wrong
    Follow Math Help Forum on Facebook and Google+
Page 2 of 2 FirstFirst 12
« Angle | Value »

Similar Math Help Forum Discussions

  1. Simplifying trigonometric expressions part 3
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: April 25th 2009, 05:32 AM
  2. Simplifying trigonometric expressions part 2
    Posted in the Pre-Calculus Forum
    Replies: 0
    Last Post: March 6th 2009, 06:30 PM
  3. Simplifying trigonometric expressions
    Posted in the Trigonometry Forum
    Replies: 3
    Last Post: January 29th 2009, 04:27 PM
  4. simplifying expressions
    Posted in the Algebra Forum
    Replies: 3
    Last Post: June 29th 2008, 10:28 AM
  5. Simplifying Trigonometric Expressions
    Posted in the Trigonometry Forum
    Replies: 13
    Last Post: January 16th 2008, 09:51 PM

Search Tags


/mathhelpforum @mathhelpforum