यदि \(A=\{1,2,3\}\) है तो तत्समक फलन \(I_A\) कौन सा है?
If \(A=\{1,2,3\}\), which is the identity function \(I_A\)?
Explanation opens after your attempt
A. ({(1,1),(2,2),(3,3)})
Concept
In the identity function each element maps to itself. Therefore all pairs are of the form ((x,x)).
Why this answer is correct
The correct answer is A. ({(1,1),(2,2),(3,3)}). In the identity function each element maps to itself. Therefore all pairs are of the form ((x,x)).
Exam Tip
तत्समक फलन में हर तत्व स्वयं से जुड़ता है। इसलिए सभी युग्म ((x,x)) रूप में हैं।
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