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Plese help ..........Set A = ( 1,2,3,4) Find A × A . ​

Answer»

A=(1,2,3,4)

so, A×A=(1,2,3,4)×(1,2,3,4)

answer=(1,1),(1,2),(1,3),(1,4),(2,1),(2,2),(2,3),(2,4),(3,1),(3,2),(3,3),(3,4),(4,1),(4,2),(4,3),(4,4)

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