- #1
Calu
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Homework Statement
Let the commutator [A,B] = cI, I the identity matrix and c some arbitrary constant.
Show [A,Bn] = cnBn-1
Homework Equations
[A,B] = AB - BA
The Attempt at a Solution
So I have started off like this:
[A,Bn] = ABn - BnA = cI
I'm not sure where to go from here.