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Excellearner
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Permutation and Combination - Number of selection of r things

Dear experts,

Can you please refer me to any online material/book which will demonstrate the application of the below rule with examples.
Please help.

Rule:Number of selection of r things (r<=n) out of n identical things is 1


Thank you
Math / Science

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aburr

8/22/2022 - Mon
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aburr

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