How many permutations can be formed from `10` objects in which `r` objects selected at a time
241 views · Published 13 October 2018 · 1:49 · Indexed 8 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW How many permutations can be formed from `10` objects in which `r` objects selected at a time where as two specific objects always occur together?
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