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  • If G = {7, 8} and H = {5, 4, 2}, find G × H and H × G.

Q3  If G = {7, 8} and H = {5, 4, 2}, find  G \times H \: \: and \: \: H \times G

Answers (1)

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It is given that
G = {7, 8} and H = {5, 4, 2}
We know that the cartesian product of two non-empty sets P and Q is defined as
P \times Q = {(p,q) , where p \epsilon P , q \epsilon Q }
Therefore,
G \times H = {(7,5),(7,4),(7,2),(8,5),(8,4),(8,2)}
And 
H \times G = {(5,7),(5,8),(4,7),(4,8),(2,7),(2,8)}

Posted by

Gautam harsolia

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