Question: 1. Prove the commutation relations of the angular moments [L, L;] = ihejkLk, [Lis ] = 0, [, L4] = hL4, [L4, L-] =

1. Prove the commutation relations of the angular moments [L, L;] =

1. Prove the commutation relations of the angular moments [L, L;] = ihejkLk, [Lis ] = 0, [, L4] = hL4, [L4, L-] = 2h, where L? = L + L, + L? y L4 = L, il, are the ladder operators

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