JEE MATHEMATICS MCQ: RELATIONS

1 Easy

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Understanding +4 | -1

Let

A

be the set of first ten natural numbers and let

R

be a relation on

A

defined by

(x, y) \in R \Leftrightarrow x+2 y=10

i.e.,

R=\{(x, y): x \in A, y \in A

and

x+2 y=10\}

. Then domains of

R^{-1}

View answer and explanation

Correct option: B

\{4,3,2,1\}

Option B (

\{4,3,2,1\}

) is correct because it represents the domain of the inverse relation, which is the range of the original relation.

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