From "Modern Quantum Mechanics, revised edition" by J. J. Sakurai, page 85.(adsbygoogle = window.adsbygoogle || []).push({});

Eqn (2.2.23a),[tex]

[x_i,F(\mathbf{p})] = i \hbar \frac{\partial F}{\partial p_i}

[/tex]Eqn(2.2.23b)[tex]

[p_i,G(\mathbf{x})] = -i \hbar \frac{\partial G}{\partial x_i}[/tex]

It says "We can easily prove both formulas by repeatedly applying (1.6.50e)."

(1.6.50e) is,[tex]

[A,BC]=[A,B]C+B[A,C][/tex]

I can't figure it out. How do I do this?

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# Sakura page 85: how to do this proof?

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