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What is second derivative of x^4 =...?


    Let f(x) = x

    Differentiate with respect to x
    f'(x) = 4x

    Differentiate again with respect to x
    f''(x) = 12x

       2                             4
    12x is the second derivative of x

    Here f''(x) use as 2nd derivative

Here f '(x) use for first derivative and f ''(x) use for second derivative



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