Question: Let A = { , 2 , } and B = { 3 , x , c } Let the relationship R = A B

Let A={,2,} and B={3,x,c}
Let the relationship R=AB
Which of the following is R-1?
R-1={(3,x),(x,),(x,);(3,2),(c,),(3,),(x,2),(c,),(c,3)}
R-1={(3,),(x,),(3,2),(c,),(3,),(x,2),(c,),(c,5)}
R-1={(3,),(x,),(x,),(3,2),(c,),(3,),(x,2),(c,),(c,2)}
R-1={(3,x),(x,),(x,),(3,3),(c,),(3,),(x,2),(c,),(c,2)}
Let A={,2,} and B={3,x,c} Let the relationship R=AB Which of the

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