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12th Class Mathematics Sample Paper Maths Olympiad Model Paper-1

  • question_answer
    Let [x] denote the greatest integer less than or equal to x. If \[f(x)=[x\sin \pi x],\] then f (x) is:

    A)  continuous at x = 0

    B)  continuous in (-1, 0)

    C)  differentiable in (-1, 1)

    D)  All of these

    E)  None of these

    Correct Answer: D

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