JEE Main & Advanced Mathematics Differentiation Question Bank Mock Test - Limits and Derivatives

  • question_answer
    Suppose the function \[f(x)-f(2x)\]has the derivative 5 at x=1 and derivative 7 at x = 2. The derivative of the function \[f(x)-f(4x)\]at x=1has the value equal to __________.

    Answer:

    19


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