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

Find three independent solutions to the differential equation

[itex]\frac{d^3}{dt^3}[/itex]f(t) + f(t) = 0

You should use complex exponentials to derive the solutions, but express the results in real

form.

2. Relevant equations

[itex]sin\theta = \frac{e^{i\theta} - e^{-i\theta}}{2i}[/itex]

[itex]cos\theta = \frac{e^{i\theta} + e^{-i\theta}}{2}[/itex]

3. The attempt at a solution

I'm not entirely sure what to do.. please help

I copy notes in class, tried to read the chapter but I don't see anything that helps me get the question

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# Homework Help: Differential equation using complex exponentials

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