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Next: Preliminary results

Orthogonality of trigonometric functions

A.V. Frolkin

This document derives expressions for

$\displaystyle \int_0^\pi \cos mx \cos nx \d x
$

$\displaystyle \int_0^\pi \sin mx \sin nx \d x
$

and

$\displaystyle \int_0^\pi \sin mx \cos nx \d x$   .$\displaystyle $





Alexander Frolkin 2001-02-17