find f'(1)
Cant seem to be getting the right answer. I believe can I get help finding the derivative.... thank you

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  1. you could write

    f(x) = 7*ln(x^2+5)^-1
    then, using the power and chain rules,

    f'(x) = 7*(-1)*ln(x^2+5)^-2 * (2x)
    = -14x/ln(x^2+5)^2
    f'(1) = -14/(ln6)^2

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