Suppose the function has the derivative 5 at and derivative 7 at

MATHEMATICS · Single correct · CBSE · Mathematics · Continuity and Differentiability · Continuity and Differentiability

Problem

Suppose the function f(x)−f(2x)f(x)-f(2x) has the derivative 5 at x=1x=1 and derivative 7 at x=2x=2. The derivative of the function f(x)−f(4x)f(x)-f(4x) at x=1x=1 has the value equal to (a) 19 (b) 9 (c) 17 (d) 14

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