Q. 16 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

Answers (1)

R = \{(a, b) : a = b - 2, b > 6\}

(A) Since, b< 6 so (2, 4) \notin R

(B) Since, 3\neq 8-2  so  (3,8) \notin R

(C) Since, 8> 6  and  6=8-2  so  (6,8) \in R

(d) Since,8\neq 7-2 so  (8,7) \notin R

The correct answer is option C

 

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