(B) Given the relation $R = \{(a, b) : b = a - 1, a \in \mathbb{Z}, 5 < a < 9\}$.Since $a$ is an integer such that $5 < a < 9$,the possible values for

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(B) Given the relation $R = \{(a, b) : b = a - 1, a \in \mathbb{Z}, 5 Since $a$ is an integer such that $5 For $a = 6$,$b = 6 - 1 = 5$.For $a = 7$,$b = 7 - 1 = 6$.For $a = 8$,$b = 8 - 1 = 7$.Thus,the relation is $R = \{(6, 5), (7, 6), (8, 7)\}$.The range of $R$ is the set of all second elements of the ordered pairs,which is $\{5, 6, 7\}$.Therefore,the correct option is $B$.

Class 11 Mathematics Relations and Functions Relations

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If $R = \{(a, b) : b = a - 1, a \in \mathbb{Z}, 5 < a < 9\}$,then the range of $R$ is

MHT CET 2020 All MHT CET

A
$\{7, 8, 9\}$
B
$\{5, 6, 7\}$
C
$\{6, 7, 8\}$
D
$\{5, 6, 7, 8, 9\}$

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If $R = \{(a, b) : b = a - 1, a \in \mathbb{Z}, 5 < a < 9\}$,then the range of $R$ is

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