EASY
11th CBSE
IMPORTANT
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If A={1,2} and B={1,3}, find A×B and B×A.

Important Questions on Relations

EASY
11th CBSE
IMPORTANT
Let A={1,2,3} and B={3,4}. Find A×B and show it graphically.
EASY
11th CBSE
IMPORTANT
If A=1,2,3 and B=2,4, what are A×B, B×A, A×A, B×B, and (A×B)(B×A)?
EASY
11th CBSE
IMPORTANT
If A and B are two sets having 3 elements in common. If n(A)=5, n(B)=4, find n(A×B) and n[(A×B)(B×A)].
EASY
11th CBSE
IMPORTANT
Let A and B be two sets. Show that the sets A×B and B×A have an element in common if the sets A and B have an element in common.
EASY
11th CBSE
IMPORTANT

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 A×B, find A and B, where x, y, z are distinct elements.

EASY
11th CBSE
IMPORTANT
Let A={1,2,3,4} and R={(a,b):aA, bA, a divides b}. Write R explicitly.
EASY
11th CBSE
IMPORTANT
If A=-1,1,  find A×A×A.
EASY
11th CBSE
IMPORTANT
If P=m, n and Q=n, m, then P×Q={(m, n), (n, m)}.