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Earn +20 ptsQ: What is operation on real numbers?
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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)
The set of real numbers are NOT closed under which operation?
Division, since you can't divide by zero.
Why are the set of real numbers is not commuted under subtraction and addition?
Real numbers are commutative (if that is what the question means) under addition. Subtraction is a binary operation defined so that it is not commutative.
Do the complex numbers for a group under binary operation ' plus '?
Yes, the complex numbers, as well as the real numbers which are a subset of the complex numbers, form groups under addition.
Rules in operation for signed numbers?
rules of operation sign of numbers
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