In the expansion of $(1+x/2)^n$, if the coefficient of the third term is twice the coefficient of the fourth term, then

Question

In the expansion of $(1+x/2)^n$, if the coefficient of the third term is twice the coefficient of the fourth term, then $n$ equals —

Accepted Answer

$5$

Answer

$4$

Answer

$6$

Answer

$7$

In the expansion of (1+x/2)n(1+x/2)^n(1+x/2)n, if the coefficient of the third term is twice the coefficient of the fourth term, then nnn equals —