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    roberts61's Avatar
    roberts61 Posts: 13, Reputation: 1
    New Member
    		  
    #1

    Apr 27, 2009, 11:29 PM
    trigonometry to degrees
    Tan a = 3
    4
    Tan = 0.75

    a = Tan-1 0.75

    a = 36.87

    can't figure out how to get from 0.75 to 36.87 degrees

    regards
    Peter
    ISneezeFunny's Avatar
    ISneezeFunny Posts: 4,175, Reputation: 821
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    #2

    Apr 27, 2009, 11:55 PM

    Your calculator has an inverse tan button.
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #3

    Apr 28, 2009, 01:39 AM

    My calculator's tan inverse function is just above the tan function. Just have to press SHIFT + tan + [number, here 0.75], and you get the result for



    or are you asking something else?
    roberts61's Avatar
    roberts61 Posts: 13, Reputation: 1
    New Member
    		  
    #4

    Apr 28, 2009, 04:26 AM
    Quote Originally Posted by Unknown008 View Post
    My calculator's tan inverse function is just above the tan function. Just have to press SHIFT + tan + [number, here 0.75], and you get the result for



    or are you asking some thing else?
    That answer really helped, thanks I can at least get on now
    cheers:D
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #5

    May 2, 2009, 04:45 AM

    Ok ask anytime! :)
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