1. The problem statement, all variables and given/known data Find the resul of [Jx Jy , Jz] where J is the angular momentum operator. Possible answers to this multiple chioce question are A) 0 B) i ħ Jz C) i ħ Jz Jx D) i ħ Jx Jz E) i ħ Jx Jy 2. Relevant equations [AB,C]=A [B,C]+[A,B] B [Ji , Jj]=i ħ εijk Jk where εijk is the Levi-Civita symbol 3. The attempt at a solution First of all, I used the first formula in this way [Jx Jy , Jz]=Jx[Jy , Jz]+[Jx , Jz]Jy Second, I used the second formula to write Jx[Jy , Jz]+[Jx , Jz]Jy=i ħ(J2x-J2y) Now I am stuck here because this result is not listed in the possible answers.