If $\ ^{n}C_{12} = \ ^{n}C_{6}$, then $\ ^{n}C_{2}$ is equal to

Question

Dr. Abubacker · Accepted Answer

(b)
Given, $\ ^{n}C_{12} = \ ^{n}C_{6}$
or $\ ^{n}C_{n - 12} = \ ^{n}C_{6}$
$\Longrightarrow n - 12 = 6 \Longrightarrow n = 18$
$	herefore\ \ ^{n}C_{2} = \ ^{18}C_{2} = 153$

Q. If $\ ^{n}C_{12} = \ ^{n}C_{6}$, then $\ ^{n}C_{2}$ is equal to

Explanation

Reviewed by Dr. Abubacker

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