f(x) is a polynomial function, f:R→R, such that f(2x)=f′(x)f′′(x). The value of f(3) is (A) 4 (B) 12 (C) 15 (D) none of these

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f(x) is a polynomial function, $f : R \to R,$ such that $f (2 x) = f^{'} (x) f^{''} (x) .$ The value of f(3) is (A) 4 (B) 12 (C) 15 (D) none of these

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f(x) is a polynomial function,

f : R \to R,

such that

f (2 x) = f^{'} (x) f^{''} (x) .

The value of f(3) is (A) 4 (B) 12 (C) 15 (D) none of these

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Question Text

f(x) is a polynomial function,

f : R \to R,

such that

f (2 x) = f^{'} (x) f^{''} (x) .

The value of f(3) is (A) 4 (B) 12 (C) 15 (D) none of these