Q13 of 140 Page 276

Given, A = {2, 3, 5} and B = {0, 1}. Find the number of different ordered pairs in which the first entry is an element of A and the second is an element of B.

This is the example of Cartesian product of two sets.


The pairs in which the first entry is an element of A and the second is an element of B are :


(2,0),(2,1),(3,0),(3,1),(5,0),(5,1)


⇒3 × 2=6


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