यदि \(A=\{0,1,2,3\}\), \(B=\{0,1,2,3,4\}\) और \(R=\{(a,b):b\ge a^2-1\}\) है, तो (|R|) क्या है?
If \(A=\{0,1,2,3\}\), \(B=\{0,1,2,3,4\}\), and \(R=\{(a,b):b\ge a^2-1\}\), what is (|R|)?
Explanation opens after your attempt
Correct Answer
B. (12)
Concept
For (a=0,1,2,3), the counts of (b) are (5,5,2,0), totaling (12). Check the boundary separately for each (a).
Why this answer is correct
The correct answer is B. (12). For (a=0,1,2,3), the counts of (b) are (5,5,2,0), totaling (12). Check the boundary separately for each (a).
Exam Tip
(a=0,1,2,3) के लिए (b) के क्रमशः (5,5,2,0) मान मिलते हैं, कुल (12)। हर (a) पर सीमा अलग जाँचें।
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