- #1

- 29

- 0

[L

_{x}

^{2},L

_{z}

^{2}]=[L

_{y}

^{2},L

_{z}

^{2}]=[L

_{z}

^{2},L

_{x}

^{2}]

But I am a little bit stuck. I've tried to apply the commutator algebra but I'm not geting very far, and by any means near of a general proof. Any help would be greatly appreciated.

Thank you.