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CoconutJJ

  • one year ago

Explain how the binomial theorem works with Combinations: nCk-1*X^(n-(k-1))*Y^k-1

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  1. Ehsan18
    • one year ago
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    you want to expand the combination only?

  2. Ehsan18
    • one year ago
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    if you want a formula for combination then here you go \[nCr = \frac{ n!}{ (n-r)!r! }\]

  3. sepeario
    • one year ago
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    ^^ exactly right.

  4. sepeario
    • one year ago
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    you will find the combinatorics will match the lines of pascals triangle.

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