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Thread: trigonometrical

  1. July 1st 2011, 11:32 AM #1
    prasum
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    trigonometrical

    sin(inverse)sin(-600)=??

    can we take(sin(-2pi+x))
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  2. July 1st 2011, 12:12 PM #2
    Also sprach Zarathustra
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    Re: trigonometrical

    Quote Originally Posted by prasum View Post
    sin(inverse)sin(-600)=??

    can we take(sin(-2pi+x))
    arcsin(sin(x))=x

    sin(-600*)=sin(-600* + 4*360*) =sin(120*)
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