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

Evaluate the commutator [itex]\left[\frac{d}{dx},x\right][/itex]

2. Relevant equations

[itex]\left[A,B\right]=AB-BA[/itex]

3. The attempt at a solution

[itex]\left[\frac{d}{dx},x\right]=1-x\frac{d}{dx}[/itex]

I don't know how to figure out [itex]x\frac{d}{dx}[/itex].

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# Homework Help: Commutation of differential operators

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