यदि \(A=\{1,2,3\}\) और \(R=\{(a,b):a+b=4\}\) है, तो कौन-सा pair (R) में है?
If \(A=\{1,2,3\}\) and \(R=\{(a,b):a+b=4\}\), which pair is in (R)?
Explanation opens after your attempt
B. ( (1,3) )
Concept
Here (1+3=4), so ( (1,3) ) belongs to the relation. The pair satisfying the condition is correct.
Why this answer is correct
The correct answer is B. ( (1,3) ). Here (1+3=4), so ( (1,3) ) belongs to the relation. The pair satisfying the condition is correct.
Exam Tip
(1+3=4), इसलिए ( (1,3) ) relation में है। जो pair condition पूरी करे वही सही होता है।
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