Question

Let x and y vary inversely and y = 54. If constant of variation = 9, x = -------.
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Answer 1

Step-by-step explanation:

A={1,2} and B={1,3}

A×B={(1,1) (1,3) (2,1) (2,3)}

B×A={(1,1) (1,2) (3,1) (3,2)}

(A×B)∪(B×A)

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