Answer :

Here,A={11,12,13} and B={8,10,12}


Also,R={(x,y) : y=x-3 ,xϵ A ,yϵ B}


={(11,8),(13,10)}


Now,R-1 ={(x,y) : x=y+3 ,xϵB ,yϵ A}


={(8,11),(10,13)}


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