If the 4th term in the expansion of (ax+1x)n is 52, then

1.	If the 4th term in the expansion of (ax+1x)n is 52, then
Answer» If the $4^{th}$ term in the expansion of ${(a x + \frac{1}{x})}^{n}$ is $\frac{5}{2}$ , then

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