( \frac{m!}{(m-2)!(m-1)} ) का सरल रूप क्या है?
What is the simplified form of ( \frac{m!}{(m-2)!(m-1)} )?
Explanation opens after your attempt
A. (m)
Concept
(m!=m(m-1)(m-2)!), so (m) remains after cancellation. Expand the factorial exactly up to the needed limit.
Why this answer is correct
The correct answer is A. (m). (m!=m(m-1)(m-2)!), so (m) remains after cancellation. Expand the factorial exactly up to the needed limit.
Exam Tip
(m!=m(m-1)(m-2)!), इसलिए काटने पर (m) बचता है। फैक्टोरियल को ठीक उसी सीमा तक फैलाएं।
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