Show that `^nP_r=(n-r+1)^nP_(r-1)`
83 views · Published 13 October 2018 · 1:28 · Indexed 8 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW Show that `^nP_r=(n-r+1)^nP_(r-1)`
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