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Thread: question regarding derivatives of arc function

  1. March 20th 2010, 05:39 PM #1
    Solid8Snake
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    question regarding derivatives of arc function

    By using the derivative investigate the function f(x)=arccos(sinx) , give its piece-wise formula for 0≤ x ≤ 2pi.

    Can someone help me with this question? I don't recall ever working arc so if anyone can help me that would be greatly appreciated.
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  2. March 21st 2010, 02:30 AM #2
    mr fantastic
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    Quote Originally Posted by Solid8Snake View Post
    By using the derivative investigate the function f(x)=arccos(sinx) , give its piece-wise formula for 0≤ x ≤ 2pi.

    Can someone help me with this question? I don't recall ever working arc so if anyone can help me that would be greatly appreciated.
    \arccos (\sin x) means the same thing as \cos^{-1} (\sin x).
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