यदि \(A=\{1,2,3,4,5\}\), \(B=\{0,1,2,3,4\}\) और \(R=\{(a,b):a-b\in{1,3}\}\) है, तो (|R|) क्या है?
If \(A=\{1,2,3,4,5\}\), \(B=\{0,1,2,3,4\}\), and \(R=\{(a,b):a-b\in{1,3}\}\), what is (|R|)?
Explanation opens after your attempt
Correct Answer
C. (8)
Concept
The condition (a-b=1) gives (5) pairs and (a-b=3) gives (3), totaling (8). Add the counts for separate differences.
Why this answer is correct
The correct answer is C. (8). The condition (a-b=1) gives (5) pairs and (a-b=3) gives (3), totaling (8). Add the counts for separate differences.
Exam Tip
(a-b=1) से (5) और (a-b=3) से (3) युग्म मिलते हैं, कुल (8)। अलग-अलग अंतरों को जोड़ें।
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