(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The function [tex]\delta(cosx)[/tex] can be written as a sum of Dirac delta functions:

[tex]\delta(cosx)=\sum_{n} a_{n}\delta(x-x_{n})[/tex]

Find the range for n and the values for [tex]a_{n}[/tex] and [tex]x_{n}[/tex]

3. The attempt at a solution

Well, taking the integral of [tex]\delta(cosx)[/tex], we only get spikes when x is an even multiple of [tex]\frac{\pi}{2}[/tex]. So shouldn't n run to infinity? Thats all i have so far, any help would be appreciated. thanks.

-Adrian

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# Homework Help: Dirac Delta Cosx

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