Mathematics, 27.07.2019 14:20 pineapplepizaaaaa

Select from the drop down menus to correctly identify whether the given operation is closed or not closed with respect to each set of numbers. positive integers are (closed, not closed) under subtraction. rational numbers are (closed, not closed) under multiplication. negative real numbers are (closed, not closed) under division. irrational numbers are (closed, not closed) under addition.

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Select from the drop down menus to correctly identify whether the given operation is closed or not c...