Let R be the relation in the set N given by $R = \{ (a,\;b):a = b - 2,\;b > 6\} .$ Choose the correct answer.
(A) (2, 4) $\in$ R
(B) (3, 8) $\in$ R
(C) (6, 8) $\in R$
(D) (8, 7) $\in$ R
Let R be the relation in the set N given by $R = \{ (a,\;b):a = b - 2,\;b > 6\} .$ Choose the correct answer.
(A) (2, 4) $\in$ R
(B) (3, 8) $\in$ R
(C) (6, 8) $\in R$
(D) (8, 7) $\in$ R
Official Solution
Option C is correct
$(a,\;b) \in R\;\;only\;\;if\;\;a = b - 2\;\;and\;\;b > 6$
$(6,\;8) \in R\;\;as\;\;6 = 8 - 2\;\;and\;\;8 > 6.$
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