यदि \(A=\{1,2,3,4,5\}\) और \(R=\{(a,b):b=a+2\}\) है, तो कौन-सा pair (R) में है?
If \(A=\{1,2,3,4,5\}\) and \(R=\{(a,b):b=a+2\}\), which pair is in (R)?
Explanation opens after your attempt
B. ( (2,4) )
Concept
Since (4=2+2), ( (2,4) ) belongs to the relation. Changing the order of an ordered pair can change the answer.
Why this answer is correct
The correct answer is B. ( (2,4) ). Since (4=2+2), ( (2,4) ) belongs to the relation. Changing the order of an ordered pair can change the answer.
Exam Tip
(4=2+2), इसलिए ( (2,4) ) relation में है। ordered pair का क्रम बदलने से उत्तर बदल सकता है।
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