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permutation and combination

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permutation and combination

1 次观看 38:32 Vokocihi

描述

This video will explain how to differentiate permutation (nPr) and combination (nCr). And support it with few past year questions. Anyways, If you would like to have more interion with me, or ask me more question, or suggest some chapter u want to learn, please add the facebook page at y=mx+c or

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