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Mathematics 11 Online
OpenStudy (anonymous):

For witch operation is the set {0,1} closed? Choose ALL answers that are correct. A. Multiplication B. Division C. Addition D. Subtraction

OpenStudy (amistre64):

what does it mean for a set to be closed?

OpenStudy (anonymous):

idk thats why I posted this as a question I am majorly confussed!

OpenStudy (amistre64):

your material, or even a google search will get you a basic definition for a closed set your real question seems to be, what defines a closed set.

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