So, I have a question from a test I took and got a 80% on it, apparently I missed this question
For which operations is the set {0, 1} closed?
A. Multiplication
B. Division
C. Addition
D. Subtraction
I picked A but the correct answers were A and B
Why division? You can't divided 0 by 0? right?

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well technically 0 divided by 0 is 0...

But, in the lesson they specifically said you can't do that.

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