NCERT Example 2 - Relations and Functions

Question: If P = {a, b, c} and Q = {r}, form P x Q and Q x P. Are the two products equal?

Answer: P x Q = {(a,r), (b,r), (c,r)}; Q x P = {(r,a), (r,b), (r,c)}; P x Q is not equal to Q x P.

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