WBJEE 2017 Math Solved Paper

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Question : 66 of 75

Marks: +1, -0

Let f : R → R be twice continuously differentiable. Let f(0) = f(1) = f'(0) = 0. Then

f''(x) ≠ 0 for all x
f''(c) = 0 for some c ∈ R
f''(x) ≠ 0 if x ≠ 0
f'(x) > 0 for all x

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