Question:medium

In the expansion of \[ \left(9x-\frac{1}{3\sqrt{x}}\right)^{18}, \] if the coefficient of the term independent of \(x\) is \(221k\), then the value of \(k\) is:

Updated On: Apr 5, 2026

\(82\)
\(83\)
\(84\)
\(86\)

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The Correct Option is A

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