\(^{n}C_r\) में (n-r) का अर्थ क्या है?
What is the meaning of (n-r) in \(^{n}C_r\)?
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Correct Answer
B. न चुनी गई वस्तुओं की संख्याNumber of unchosen objects
Concept
After choosing (r) objects (n-r) objects remain. In exams remember this meaning for complement counting.
Why this answer is correct
The correct answer is B. न चुनी गई वस्तुओं की संख्या / Number of unchosen objects. After choosing (r) objects (n-r) objects remain. In exams remember this meaning for complement counting.
Exam Tip
(r) वस्तुएँ चुनने के बाद (n-r) वस्तुएँ बचती हैं। परीक्षा में complement counting के लिए यह अर्थ याद रखें।
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