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If f(x) = (cos x)(esin x ), then, correct to the nearest hundredth, f '(2.0) =

The answers suppose to be 0.86 but i always get -1.83

  • Calculus -

    f'(x) = -1.82747...

    To find the problem you have, I suggest you verify if f(x) is as defined above, and what did you get for f'(x)?

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