यदि \(A=\{1,2,3,4\}\), \(R=\{(a,b):a+b=5\}\), तो \(R\circ R\) में कौन सा युग्म होगा?

If \(A=\{1,2,3,4\}\), \(R=\{(a,b):a+b=5\}\), which pair will be in \(R\circ R\)?

Explanation opens after your attempt
Correct Answer

A. ((1,1))

Step 1

Concept

Since (1R4) and (4R1), \((1,1)\in R\circ R\). In composition, the middle element must match.

Step 2

Why this answer is correct

The correct answer is A. ((1,1)). Since (1R4) and (4R1), \((1,1)\in R\circ R\). In composition, the middle element must match.

Step 3

Exam Tip

(1R4) और (4R1), इसलिए \((1,1)\in R\circ R\) है। composition में बीच वाला अवयव समान होना चाहिए।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3,4\}\), \(R=\{(a,b):a+b=5\}\), तो \(R\circ R\) में कौन सा युग्म होगा? / If \(A=\{1,2,3,4\}\), \(R=\{(a,b):a+b=5\}\), which pair will be in \(R\circ R\)?

Correct Answer: A. ((1,1)). Explanation: (1R4) और (4R1), इसलिए \((1,1)\in R\circ R\) है। composition में बीच वाला अवयव समान होना चाहिए। / Since (1R4) and (4R1), \((1,1)\in R\circ R\). In composition, the middle element must match.

Which concept should I revise for this Mathematics MCQ?

Since (1R4) and (4R1), \((1,1)\in R\circ R\). In composition, the middle element must match.

What exam hint can help solve this Mathematics question?

(1R4) और (4R1), इसलिए \((1,1)\in R\circ R\) है। composition में बीच वाला अवयव समान होना चाहिए।