\(नीचे दिए संबंध (R={(a,b):a+b\) is prime\(}) में, (A={1,2,3,4}) के लिए कौन सा युग्म अवश्य (R) में है\)?

\(For the relation (R={(a,b):a+b\) is prime\(}) with (A={1,2,3,4}), which pair definitely belongs to (R)\)?

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Correct Answer

D. ((3,4))

Step 1

Concept

For ((3,4)), (3+4=7), which is prime. The other sums (4,8,6) are not prime.

Step 2

Why this answer is correct

The correct answer is D. ((3,4)). For ((3,4)), (3+4=7), which is prime. The other sums (4,8,6) are not prime.

Step 3

Exam Tip

((3,4)) में (3+4=7), जो prime है। बाकी दिए योग (4,8,6) prime नहीं हैं।

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Mathematics Answer, Explanation and Revision Hints

\(नीचे दिए संबंध (R={(a,b):a+b\) is prime}) में, \(A=\{1,2,3,4\}\) के लिए कौन सा युग्म अवश्य (R) में है? \(/ For the relation (R={(a,b):a+b\) is prime\(}) with (A={1,2,3,4}), which pair definitely belongs to (R)\)?

Correct Answer: D. ((3,4)). Explanation: ((3,4)) में (3+4=7), जो prime है। बाकी दिए योग (4,8,6) prime नहीं हैं। / For ((3,4)), (3+4=7), which is prime. The other sums (4,8,6) are not prime.

Which concept should I revise for this Mathematics MCQ?

For ((3,4)), (3+4=7), which is prime. The other sums (4,8,6) are not prime.

What exam hint can help solve this Mathematics question?

((3,4)) में (3+4=7), जो prime है। बाकी दिए योग (4,8,6) prime नहीं हैं।