Math, asked by parzival133, 1 year ago

main formulae for solving questions of permutations

Answers

Answered by Biswajeetkr

1

n^Pr is used, n!/n-r!

parzival133: thank you

parzival133: What about main formulae for solving combinations?

parzival133: what is Cr and Pr?

parzival133: thank you sir

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