Homework One

Finish the integral:

Failed to parse (syntax error): {\displaystyle \int_{-T/2}^{T/2}e^{j2\pi\(n-m)t/T} \,dx}

$$\begin{gathered} \underset{-\mathrm{\infty }}{\overset{\mathrm{\infty }}{\int }}f(u)*\delta \\ (t-u)du \end{gathered}$$