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Calculus, need help again...

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If the function f is defined by f(x)=x^2-2x, find limit h->0
(f(3+h)-(f(3-h))/2h

  • Calculus, need help again... - ,

    Do exactly what is suggested, and simplify the resulting expression:
    (f(3+h)-(f(3-h))/2h
    =((3+h)²-2(3+h)-((3-h)²-2(3-h)))/2h
    =...

    Take the limit h->0 if necessary.

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