Solve the equation: np = (1)/(a) integral0^a n(x) e⁻²pi px/a dx

The problem asks to solve the given equation:

$$np = \frac{1}{a} \int_{0}^{a} n(x) e^{-2\pi px/a} dx$$

This equation defines $np$ in terms of an integral involving a function $n(x)$. Without a specific definition for $n(x)$, the integral cannot be evaluated further to a numerical or simpler algebraic expression.

However, if we assume that $n(x)$ is a constant function, say $n(x) = C$, then we can evaluate the integral.

Step 1: Substitute $n(x) = C$ into the integral.

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