Question: 3. Show that: [A,[B,C]]+[B,[C,A]]+[C,[A,B]]=0 where A,B, and C are arbitrary linear operators. 4. Evaluate the following commutators: a) [x,px] b) [x,px2]

3. Show that: [A,[B,C]]+[B,[C,A]]+[C,[A,B]]=0 where A,B, and C are arbitrary linear operators. 4. Evaluate the following commutators: a) [x,px] b) [x,px2]

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