Question: In the expansion of $\frac{e^{4x} - 1}{e^{2x}}$, the coefficient of $x^{2}$ is....

Question

In the expansion of $\frac{e^{4x} - 1}{e^{2x}}$ , the coefficient of $x^{2}$ is.

Answer 1

$x^{- 1}$

The coefficient of $- \log_{e}(1 + x)$ .

Question: In the expansion of \(\frac{e^{4x} - 1}{e^{2x}}\), the coefficient of \(x^{2}\) is....