JEE Math Practice Question
Let f be a polynomial function such that f (3x) = f ' (x) . f '' (x), for all x $$ \in $$ R. Then :
- A.f (2) + f ' (2) = 28
- B.f '' (2) $$-$$ f ' (2) = 0
- C.f '' (2) $$-$$ f (2) = 4
- D.f (2) $$-$$ f ' (2) + f '' (2) = 10
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