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Math Help - Function

  1. #1
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    Function

    Knowing that f(x)=tg^2(3x+1), the value of f''(\frac{-1}{3}) is ?
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  2. #2
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    Quote Originally Posted by Apprentice123 View Post
    Knowing that f(x)=tg^2(3x+1), the value of f''(\frac{-1}{3}) is ?
    Since f is a linear function the second derivative is zero for all x.
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