2.Relations and Functions
easy

$R =\left\{(a, b): a, b \in N \right.$ तथा $\left.a=b^{2}\right\}$ द्वारा परिभाषित $N$ से $N$ में, एक संबंध $R$ है। क्या निम्नलिखित कथन सत्य हैं ?

$(a, a) \in R ,$ सभी $a \in N$

Option A
Option B
Option C
Option D

Solution

$R=\left\{(a, b): a, b \in N \text { and } a=b^{2}\right\}$

It can be seen that $2 \in N$; however, $2 \neq 2^{2}=4$

Therefore, the statement $''(a, a) \in R,$ for all $a \in N ^{\prime \prime}$ is not true.

Standard 11
Mathematics

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