This is from section 2.3 in Griffith's book on the harmonic oscillator, and apparently this differential equation should be obvious (to move on in my reading, I need to understand this first). I'm not quite sure how to solve a second order ODE without constant coefficients, so help to get to the given solution of the equation would be more than welcome.(adsbygoogle = window.adsbygoogle || []).push({});

Here is a grab of it:

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# Explanation from Part of Griffith's text (Differential Equation)

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