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प्रश्न
Find A × B, A × A and B × A :
A = B = {p, q}
उत्तर
A = B = {p, q}
A × B = {p, q} × {p, q}
= {(p, p) (p, q) (q, p) (q, q)}
A × A = {p, q} × {p, q}
= {(p, p) (p, q) (q, p) (q, q)}
B × A = {p, q} × {p, q}
= {(p, p) (p, q) (q, p) (q, q)}
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