Prove that `(n-r+1)((n!)/((n-r+1)!))=((n!)/((n-r)!))`
2,731 views · Published 12 October 2018 · 1:17 · Indexed 6 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW Prove that `(n-r+1)((n!)/((n-r+1)!))=((n!)/((n-r)!))`
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