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Let A and B be two sets such that n (A) ...

Let A and B be two sets such that n (A) = 3 and n(B) =2. If (x,1) (y,2) (z,1) are in `AxxB`, find A and B, where x,y,z are distinct elements.

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A, B
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Knowledge Check

  • Let Z denote the set of all integers and A = { (a,b) : a^2 +3b^2 = 28 ,a,b in Z } and B= {(a,b ):a gt b, in Z} . Then the number of elements in A nn B is

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    C
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    D
    6

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

    A
    2
    B
    4
    C
    8
    D
    12

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