(n) अलग वस्तुओं के (r) वस्तुओं वाले उपसमुच्चयों की संख्या कौन-सा सूत्र देता है?
Which formula gives the number of subsets having (r) objects from (n) distinct objects?
Explanation opens after your attempt
C. \(^{n}C_r\)
Concept
A subset has no order so \(^{n}C_r\) is correct. In exams treat a subset as unordered selection.
Why this answer is correct
The correct answer is C. \(^{n}C_r\). A subset has no order so \(^{n}C_r\) is correct. In exams treat a subset as unordered selection.
Exam Tip
उपसमुच्चय में क्रम नहीं होता इसलिए \(^{n}C_r\) सही है। परीक्षा में subset को unordered selection मानें।
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