\(^{n}C_{n-1}\) का मान (n) क्यों होता है?
Why is \(^{n}C_{n-1}\) equal to (n)?
Explanation opens after your attempt
Correct Answer
A. क्योंकि (n-1) चुनना एक वस्तु छोड़ने जैसा हैBecause choosing (n-1) is like leaving one object
Concept
Choosing (n-1) objects means leaving (1) object and there are (n) choices for that. In exams think by complementary selection.
Why this answer is correct
The correct answer is A. क्योंकि (n-1) चुनना एक वस्तु छोड़ने जैसा है / Because choosing (n-1) is like leaving one object. Choosing (n-1) objects means leaving (1) object and there are (n) choices for that. In exams think by complementary selection.
Exam Tip
(n-1) वस्तुएँ चुनने का अर्थ है (1) वस्तु छोड़ना और उसके (n) विकल्प हैं। परीक्षा में पूरक चयन से सोचें।
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