(n!) को किस रूप में लिखा जा सकता है?
Which form can represent (n!)?
Explanation opens after your attempt
B. (n(n-1)!)
Concept
(n!=n(n-1)!) is the correct identity. This formula is used often in factorial questions.
Why this answer is correct
The correct answer is B. (n(n-1)!). (n!=n(n-1)!) is the correct identity. This formula is used often in factorial questions.
Exam Tip
(n!=n(n-1)!) सही पहचान है। फैक्टोरियल के सवालों में यह सूत्र बार-बार काम आता है।
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