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Earn +20 ptsQ: Is the set of real numbers closed under multiplication?
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Is the set of negative integers closed under multiplication real numbers?
No, it is not.
Why is the set of negative real numbers not closed under multiplication?
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What are the different rules in governing operations of real numbers?
The set of real numbers is closed under addition, subtraction, multiplication, and division (except that you cannot divide by zero). By closed, this means that if the two numbers in the operation are both real numbers, the result of the operation will always be a real number. Dividing by zero is undefined (for all practical purposes)
Are real numbers closed under division?
no
Are real numbers closed under addition and subtraction?
Real numbers are closed under addition and subtraction. To get a number outside the real number system you would have to use square root.
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