12th Class Mathematics Sample Paper Maths Olympiad Model Paper-7

  • question_answer
    If \[f\,\,(x)=\left\{ \begin{matrix}    -{{x}^{2}},when\,x\underline{<}0  \\    5x-4,when\,0<x\underline{<}1  \\    4{{x}^{2}}-3x,when\,1<x<2  \\    3x+4,when\,x\underline{>}2  \\ \end{matrix} \right.\,\,,\text{then}\]

    A)  f (x) is continuous at x = 0

    B)  f (x) is continuous at x = 2

    C)  f (x) is discontinuous at x = 1

    D)  f (x) is discontinuous at x = 2

    E)  None of these

    Correct Answer: B


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