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Math Help - Derivative and inverse

  1. #1
    VkL
    VkL is offline
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    Derivative and inverse

    (a) Given that f(x) = x6, find f '(2).
    f '(x) = 6x^5
    f '(2) = 192
    1
    (b) Find f -1(x).

    Is there a formula for part b? its easy to just take the inverse in this case...but what if there was a function that is very hard to inverse, or impossible. Thanks.
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  2. #2
    Junior Member
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    i think there is no short cut...
    inverse the function and calculate..
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