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Mathematics

11th

grade

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RELATIONS - CLASS XI - CBSE

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15 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Find a and b, when (a - 1, b + 5) =(2, 3) .

    a = 3, b = - 2

    a = - 3, b = 2

    a = 3, b = 2

    a = - 3, b = - 2

  • 2. Multiple Choice
    45 seconds
    1 pt

    If  R={(x,y): x, yZ, x2+y24}R=\left\{\left(x,y\right):\ x,\ y\in Z,\ x^2+y^2\le4\right\}  is a relation on Z, then domain of R is

    {0, 1, 2}

    {0, - 1, - 2}

    {- 2, - 1, 0, 1, 2}

    none of these

  • 3. Multiple Choice
    45 seconds
    1 pt

    If A = {1, 2, 3}, B = {1, 4, 6, 9} and R is a relation from A to B defined by 'x is greater than y'. The range of R is

    {1, 4, 6, 9}

    {4, 6, 9}

    {1}

    none of these

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