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Math Help - Find the indicated trig function HELP ^_^

  1. #1
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    Find the indicated trig function HELP ^_^

    Find the indicated trig function of
    θ, if θ is an angle in standard position with the terminal side defined by the given

    point.
    (12, 16); Find cos
    θ.


    answer is 4 over 5 but how do i find this?

    please help ^_^ <3


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  2. #2
    Junior Member
    Joined
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    Bangalore
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    Re: Find the indicated trig function HELP ^_^

    Solution :

    Given ?
    Solution: Given ? is an angle in standard position with the terminal side defined by the given point. (12, 16) find cos ?
    one side AB =12 and another side BC =16
    by Pythagoras we fine ACē=ABē+BCē
    ACē=400
    AC=20
    know that cos ? =16/20 cos ? =4/5
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