CBSE Class 12 Sample Paper for 2021 Boards

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Question 3 (Choice 1) - CBSE Class 12 Sample Paper for 2021 Boards - Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

Last updated at August 10, 2026 by

A relation R in the set of real numbers R defined as š‘… = {(š‘Ž, š‘): √š‘Ž = š‘} is a function or not. Justify

A relation R in the set of real numbers R defined as R = {(a, b): root

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Question 3 (Choice 1) A relation R in the set of real numbers R defined as š‘… = {(š‘Ž, š‘): āˆšš‘Ž = š‘} is a function or not. Justify Given š‘… = {(š‘Ž, š‘): āˆšš‘Ž = š‘} Here, R is defined in set of Real Numbers So, a āˆˆ R and b āˆˆ R But, āˆšš‘Ž = š‘ is not defined for negative values of a So, R is not a function

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