Question:
The coefficient of $x^{-6}$, in the expansion of $\left(\frac{4 x}{5}+\frac{5}{2 x^2}\right)^9$, is______
The coefficient of $x^{-6}$, in the expansion of $\left(\frac{4 x}{5}+\frac{5}{2 x^2}\right)^9$, is______
Updated On: Sep 24, 2024
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Correct Answer: 5040
Solution and Explanation
The correct answer is 5040.
Now,
Coefficient of i.e.
So, Coefficient of
Now,
Coefficient of i.e.
So, Coefficient of
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Concepts Used:
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