Find the 4th term from the end in the expansion of `(3/(x^2)-(x^3)/6)^7` .

Explanation

To find the 4th term from the end in the expansion of \((\frac{3}{x^2} - \frac{x^3}{6})^7\), we can follow these steps:

### Step 1: Identify the total number of terms
The total number of terms in the expansion of \((a + b)^n\) is given by \(n + 1\). Here, \(n = 7\), so the total number of terms is:
\[ n + 1 = 7 + 1 = 8 \]

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