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  3. CEE Kerala Engineering

CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2005

  • question_answer
    The number of elements in the set\[\{(a,b):\]\[2{{a}^{2}}+3{{b}^{2}}=35,\text{ }a,b\in Z\},\]where Z is the set of all integers, is:

    A)  2                                            

    B)  4

    C)  8                            

    D)         12

    E)  16

    Correct Answer: C

    Solution :

    The possible sets are\[\{\pm \text{ }2,\pm \text{ }3\}\]and\[\{\pm 4,\pm 1\}\]; therefore, number of elements in required set is 8.


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