Evaluate n -n-r - wheni n-6- r-2 ii n-9- r-5

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Test for Monotonicity about a Point

Evaluate n !/...

Question

Evaluate, when

(i) n = 6, r = 2 (ii) n = 9, r = 5

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\frac{n!}{(n - r)!},

(i) n = 6, r = 2 (i i) n = 9, r = 5

\frac{n!}{(n - r)!}

n = 6, r = 2

n = 9, r = 5

Evaluate $\frac{n!}{(n - r)!}$ when

$(i) n = 6, r = 2 (i i) n = 9, r = 5.$

\frac{n!}{(n - r)!}

n = 9, r = 5

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