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sdk

  • 3 years ago

Type the formula for the number of permutations of n things taken r at a time. p(n,r)=

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  1. johhjohn
    • 3 years ago
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    2x^2+4=5-2x^2

  2. FoolForMath
    • 3 years ago
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    \[ \frac {n!}{(n-r)!} \]

  3. ParthKohli
    • 3 years ago
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    \( \color{Black}{\Rightarrow P(n,r) = \Large {n! \over (n - r)!} }\) lol had to give the answer out here.

  4. ParthKohli
    • 3 years ago
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    Forgive me, Mr. Fool

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