\(^{n}P_r\) के derivation में choices घटती क्यों हैं?
Why do choices decrease in the derivation of \(^{n}P_r\)?
Explanation opens after your attempt
A. क्योंकि चुनी गई वस्तु दोबारा नहीं चुनी जातीBecause a chosen object is not selected again
Concept
Without repetition the available count decreases after one choice is used. In exams connect no repetition with a falling product.
Why this answer is correct
The correct answer is A. क्योंकि चुनी गई वस्तु दोबारा नहीं चुनी जाती / Because a chosen object is not selected again. Without repetition the available count decreases after one choice is used. In exams connect no repetition with a falling product.
Exam Tip
Without repetition में एक choice use होने के बाद available count कम होता है। परीक्षा में no repetition को falling product से जोड़ें।
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