\(^{n}C_2\) में denominator (2) आने का factorial कारण क्या है?
What is the factorial reason for denominator (2) in \(^{n}C_2\)?
Explanation opens after your attempt
Correct Answer
A. (2!=2)
Concept
(^{n}C_2=\frac{n(n-1)}{2!}) and (2!=2). In exams remember small factorial values.
Why this answer is correct
The correct answer is A. (2!=2). (^{n}C_2=\frac{n(n-1)}{2!}) and (2!=2). In exams remember small factorial values.
Exam Tip
(^{n}C_2=\frac{n(n-1)}{2!}) और (2!=2) होता है। परीक्षा में small factorial values याद रखें।
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