Prove: A x B = ∅ iff. A = ∅ or B = ∅

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Question

math Advanced-Math

Answer 1

Answer #1

To show & Ax B= 0 + A=0 or B= 6 (6 let Ax B=0 On the contrary let us assume that A=0 and B+0 Ax B = (1,4) 11e A, YEBY A there

Answer 2

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