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प्रश्न
Find A × B, A × A and B × A :
A = {2, −2, 3} and B = {1, −4}
उत्तर
A = {2, −2, 3} and B = {1, −4}
A × B = {2, −2, 3} × {1, −4}
= {(2, 1) (2, −4) (−2, 1) (−2, −4) (3, 1) (3, −4)}
A × A = {2, −2, 3} × {2, −2, 3}
= {(2, 2) (2, −2) (2, 3) (−2, 2) (−2, −2) (−2, 3) (3, 2) (3, −2) (3, 3)}
B × A = {1, −4} × {2, −2, 3}
= {(1, 2) (1, −2) (1, 3) (−4, 2) (−4, −2) (−4, 3)}
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