मान लीजिए कि A = {1, 2} और B = {3, 4}, `A xx B` लिखिए ।` A xx B` के कितने उपसमुच्चय होंगे? उनकी सूची बनाइए।

Explanation

A = {1, 2} और B = {3, 4}
`therefore A xx B` = {(1, 3), (1, 4), (2, 3), (2, 4)} स्पष्ट है कि `n (A xx B) = 4`
`therefore A xx B` में उपसमुच्चय कि संख्या `=(2)^(4) = 16`
`A xx B` में उपसमुच्चय कि सूची
= {(1, 3), (1, 4), (2, 3), (2, 4)}, {(1, 3), (1, 4), (2, 3)}, {(1, 4), (2, 3), (2, 4)}, {(2, 3), (2, 4), (1, 3)}, {(2, 4), (1, 3), (1, 4)}, {(1, 3), (1, 4)}, {(1, 3), (2, 3)}, {(1, 3), (2, 4)}, {(1, 4), (2, 4)}, {(1, 4), (2, 3)}, {(2, 3), (2, 4)}, {(1, 3)}, {(1, 4)}, {(2, 3)}, {(2, 4)} `phi`