Let f'(x) be continuous at x = 0 and f"(0) = 4. Then value of \[\underset{x\to 0}{\mathop{\lim }}\,\frac{2f(x)-3f(2x)+f(4x)}{{{x}^{2}}}\] is

Let f'(x) be continuous at x = 0 and f"(0) = 4. Then value of \[\under

1.	Let f'(x) be continuous at x = 0 and f"(0) = 4. Then value of \[\underset{x\to 0}{\mathop{\lim }}\,\frac{2f(x)-3f(2x)+f(4x)}{{{x}^{2}}}\] is
A.	12
B.	10
C.	6
D.	4
Answer» B. 10

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Let f'(x) be continuous at x = 0 and f"(0) = 4. Then value of \[\underset{x\to 0}{\mathop{\lim }}\,\frac{2f(x)-3f(2x)+f(4x)}{{{x}^{2}}}\] is

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