यदि \(A=\{0,1,2,3\}\), तो (0) को शामिल करने वाले ठीक दो-सदस्यीय उपसमुच्चयों की संख्या कितनी है?
If \(A=\{0,1,2,3\}\), how many two-element subsets contain (0)?
Explanation opens after your attempt
Correct Answer
B. (3)
Concept
Element (0) is fixed, and the second element is chosen from (1,2,3). So there are (3) subsets.
Why this answer is correct
The correct answer is B. (3). Element (0) is fixed, and the second element is chosen from (1,2,3). So there are (3) subsets.
Exam Tip
(0) निश्चित है और दूसरा सदस्य (1,2,3) में से चुना जाएगा। इसलिए (3) उपसमुच्चय बनते हैं।
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