यदि \(A=\{1,2,3,4\}\), \(B=\{2,4,6,8\}\) और \(R=\{(a,b):\frac{b}{a}\in\mathbb{N}\}\) है, तो (|R|) क्या है?
If \(A=\{1,2,3,4\}\), \(B=\{2,4,6,8\}\), and \(R=\{(a,b):\frac{b}{a}\in\mathbb{N}\}\), what is (|R|)?
Explanation opens after your attempt
C. (11)
Concept
This is the condition \(a\mid b\); for (a=1,2,3,4), the counts are (4,4,1,2). The total is (11) pairs.
Why this answer is correct
The correct answer is C. (11). This is the condition \(a\mid b\); for (a=1,2,3,4), the counts are (4,4,1,2). The total is (11) pairs.
Exam Tip
यह \(a\mid b\) की शर्त है; (a=1,2,3,4) के लिए गिनती (4,4,1,2) है। कुल (11) युग्म मिलते हैं।
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