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WBJEE 2020 Math Solved Paper

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Question : 49

Total: 75

Let f : R → R be twice continuously differentiable (or f" exists and is continuous) such that f(0)=f(1)=f′(0)=0. Then

f"(c) = 0 for some c ∈ R
there is no point for which f"(x) = 0
at all points f"(x) > 0
at all points f"(x) < 0

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