Read the textbook, chapters 9.1-9.3.

Homework (due by Tuesday, 11.6):

- Find Fourier transform of the function on \((-\pi,\pi)\) equal to \(0\) for \(-\pi<x<0\) and to \(1\) for \(0\leq x<\pi\).
- Find
*cosine*expansion of \(\sin(2x)\) on \([0,\pi]\). - Find
*sine*expansion of \(\sin(2x)\) on \([0,\pi]\).

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