यदि \(A=\{1,2,3,4\}\) और \(R=\{(a,b):a+b=7\}\) है, तो (R) में कुल कितने ordered pairs हैं?

If \(A=\{1,2,3,4\}\) and \(R=\{(a,b):a+b=7\}\), how many ordered pairs are in (R)?

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Correct Answer

B. (2)

Step 1

Concept

From the given set, ( (3,4) ) and ( (4,3) ) are formed. In ordered pairs, changing the order changes the pair.

Step 2

Why this answer is correct

The correct answer is B. (2). From the given set, ( (3,4) ) and ( (4,3) ) are formed. In ordered pairs, changing the order changes the pair.

Step 3

Exam Tip

दिए गए set से ( (3,4) ) और ( (4,3) ) बनते हैं। ordered pair में क्रम बदलने से pair बदल जाता है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3,4\}\) और \(R=\{(a,b):a+b=7\}\) है, तो (R) में कुल कितने ordered pairs हैं? / If \(A=\{1,2,3,4\}\) and \(R=\{(a,b):a+b=7\}\), how many ordered pairs are in (R)?

Correct Answer: B. (2). Explanation: दिए गए set से ( (3,4) ) और ( (4,3) ) बनते हैं। ordered pair में क्रम बदलने से pair बदल जाता है। / From the given set, ( (3,4) ) and ( (4,3) ) are formed. In ordered pairs, changing the order changes the pair.

Which concept should I revise for this Mathematics MCQ?

From the given set, ( (3,4) ) and ( (4,3) ) are formed. In ordered pairs, changing the order changes the pair.

What exam hint can help solve this Mathematics question?

दिए गए set से ( (3,4) ) और ( (4,3) ) बनते हैं। ordered pair में क्रम बदलने से pair बदल जाता है।