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    shannon1135's Avatar
    shannon1135 Posts: 1, Reputation: 1
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    #1

    Apr 10, 2013, 03:34 PM
    trig
    verify the identity
    sinx cosx+sinx/cosx+cos^2x=tanx
    InfoJunkie4Life's Avatar
    InfoJunkie4Life Posts: 1,409, Reputation: 81
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    #2

    Apr 10, 2013, 04:34 PM
    Please verify that your equation is the following:



    If so, the answer depends on factoring the top half and the bottom half of the fraction side of the equation and on a quotient identity.

    First, factor the top portion of the fraction:


    Second, factor the bottom portion of the fraction:


    Now you can see how the top and bottom partially cancel:


    The quotient identity verifies that sin/cos=tan through right angle trig...

    Good luck, and if something is not clear please post back with any questions.
    JudyKayTee's Avatar
    JudyKayTee Posts: 46,503, Reputation: 4600
    Uber Member
    		  
    #3

    Apr 11, 2013, 12:22 PM
    It is AMHD policy not to do homework - Ask Me Help Desk - Announcements in Forum : Homework Help
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