A) {(8, 11), (10, 13)}
B) {(11, 18), (13, 10)}
C) {(10, 13), (8, 11)}
D) None of these
Correct Answer: A
Solution :
R is a relation from {11, 12, 13}to {8, 10, 12} defined by \[y=x-3\Rightarrow x-y=3\] \ R = {11, 8},{13, 10}. Hence, \[{{R}^{-1}}=\{8,\,11\};\{10,\,13\}\].
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