1.

f: R rarr R, f(x) is a differentiable function such that all its successive derivatives exist. f'(x) can be zero at discrete points only and f(x)f''(x) le 0 AA x in R If alpha and beta are two consecutive roots of f(x) = 0, then

Answer»

`f''(GAMMA) = 0 gamma in(alpha , beta)`
`f'''(gamma) = 0 gamma in(alpha , beta)`
`f''''(gamma) = 0 gamma in(alpha , beta)`
`f'''''(gamma) = 0 gamma in(alpha , beta)`

Answer :B


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