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Can someone explain how to understand what the 4th quiz was asking for, such as problem 2 about <math>L_+</math> or <math>S_+</math>? I am not asking how to solve the problem, just wondering generally how do you understand what the question was asking. This might seemed to be a silly question to ask, but it has bothered me a long time already this semester.

Hey there Can. I think all it was asking, in simple terms, was to see the effect on the Z component of angular momentum if you mess around with the x and y components…

If anyone who killed their tests sees this, would you mind bringing them to class today? I'm not sure if Yuichi is going to give us solutions to the previous exams, but they would be good review for the final. I could certainly use some help on test one and 3.

Return to Q&A main page: Q_A
Q&A for the previous lecture: Q_A_1214
Q&A for the final exam: Q_A_1219