यदि \(A=\{2,3,4\}\) और \(B=\{3,4,5\}\) हैं, तो \(A\times B\) में कितने युग्म ((x,y)) ऐसे हैं कि (x=y)?

If \(A=\{2,3,4\}\) and \(B=\{3,4,5\}\), how many pairs ((x,y)) in \(A\times B\) satisfy (x=y)?

Explanation opens after your attempt
Correct Answer

B. (2)

Step 1

Concept

The valid pairs are ((3,3)) and ((4,4)). Such pairs are formed from elements of \(A\cap B\).

Step 2

Why this answer is correct

The correct answer is B. (2). The valid pairs are ((3,3)) and ((4,4)). Such pairs are formed from elements of \(A\cap B\).

Step 3

Exam Tip

सही युग्म ((3,3)) और ((4,4)) हैं। ऐसे युग्म \(A\cap B\) के अवयवों से बनते हैं।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{2,3,4\}\) और \(B=\{3,4,5\}\) हैं, तो \(A\times B\) में कितने युग्म ((x,y)) ऐसे हैं कि (x=y)? / If \(A=\{2,3,4\}\) and \(B=\{3,4,5\}\), how many pairs ((x,y)) in \(A\times B\) satisfy (x=y)?

Correct Answer: B. (2). Explanation: सही युग्म ((3,3)) और ((4,4)) हैं। ऐसे युग्म \(A\cap B\) के अवयवों से बनते हैं। / The valid pairs are ((3,3)) and ((4,4)). Such pairs are formed from elements of \(A\cap B\).

Which concept should I revise for this Mathematics MCQ?

The valid pairs are ((3,3)) and ((4,4)). Such pairs are formed from elements of \(A\cap B\).

What exam hint can help solve this Mathematics question?

सही युग्म ((3,3)) और ((4,4)) हैं। ऐसे युग्म \(A\cap B\) के अवयवों से बनते हैं।