Mathematics · 2016
JEE Main · 10 April 2016, Shift 1 · Q66
If (^n+2 C_6)/(^n-2 P_2)=11, then n satisfies the equation:
If $\displaystyle \frac{{ }^{n+2} \mathrm{C}_6}{{ }^{n-2} \mathrm{P}_2}=11$, then $\displaystyle n$ satisfies the equation :
Official answer
(1)
$\displaystyle n^2+3 n-108=0$
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JEE Main 2016 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.