यदि \(A=\{1,2,3\}\) और \(B=\{4,5\}\) हैं, तो \(A\times B\) का उपसमुच्चय \(R=\{(x,y):x+y=7\}\) क्या है?

If \(A=\{1,2,3\}\) and \(B=\{4,5\}\), what is the subset \(R=\{(x,y):x+y=7\}\) of \(A\times B\)?

Explanation opens after your attempt
Correct Answer

A. ({(2,5),(3,4)})

Step 1

Concept

Since (2+5=7) and (3+4=7), these pairs belong to (R). Think of all pairs in \(A\times B\) before filtering.

Step 2

Why this answer is correct

The correct answer is A. ({(2,5),(3,4)}). Since (2+5=7) and (3+4=7), these pairs belong to (R). Think of all pairs in \(A\times B\) before filtering.

Step 3

Exam Tip

(2+5=7) और (3+4=7), इसलिए यही युग्म आते हैं। संबंध बनाने से पहले पूरा \(A\times B\) सोचें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3\}\) और \(B=\{4,5\}\) हैं, तो \(A\times B\) का उपसमुच्चय \(R=\{(x,y):x+y=7\}\) क्या है? / If \(A=\{1,2,3\}\) and \(B=\{4,5\}\), what is the subset \(R=\{(x,y):x+y=7\}\) of \(A\times B\)?

Correct Answer: A. ({(2,5),(3,4)}). Explanation: (2+5=7) और (3+4=7), इसलिए यही युग्म आते हैं। संबंध बनाने से पहले पूरा \(A\times B\) सोचें। / Since (2+5=7) and (3+4=7), these pairs belong to (R). Think of all pairs in \(A\times B\) before filtering.

Which concept should I revise for this Mathematics MCQ?

Since (2+5=7) and (3+4=7), these pairs belong to (R). Think of all pairs in \(A\times B\) before filtering.

What exam hint can help solve this Mathematics question?

(2+5=7) और (3+4=7), इसलिए यही युग्म आते हैं। संबंध बनाने से पहले पूरा \(A\times B\) सोचें।