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Yes, -1 and 1 are real numbers.
Real numbers consist of Irrational Numbers, rational numbers and integers.
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∙ 12y ago
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Are 1 and 2 real numbers?
Yes they are real numbers
What are the unit system of real numbers?
The unit for real numbers is the number 1.
What set of numbers does -1 belong to?
Not whole numbers. Yes to real numbers and integers.
Is there a real zero between -1 and -2?
1
What real numbers are equal to their cubes?
1 = 13; -1 = (-1)3.
Are 1 and 2 real numbers?
Yes they are real numbers
What are the unit system of real numbers?
The unit for real numbers is the number 1.
Are real numbers real?
Yes. :S real numbers are real numbers. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.
Is -1 is real number?
Natural numbers, integers, rational numbers are all part of the real numbers. -1 is an integer (and a rational number), so it is also real.
What set of numbers does -1 belong to?
Not whole numbers. Yes to real numbers and integers.
Is there a real zero between -1 and -2?
1
What is -1 from the real number system?
It is an element of the set of real numbers.
What are the real numbers that is not a whole number?
Real numbers are all numbers which do not contain "i", when "i" represents the square root of -1. All numbers which do contain "i" are "imaginary numbers" and are not real numbers. This means that all numbers you'd ordinarily use are real numbers - all the counting numbers (integers) and all decimals are real numbers. So in answer to your question, all the real numbers that are not whole numbers are all the decimal numbers - including irrational decimals such as pi.
Give an example of a not real number?
Real numbers are those which can be placed upon a number line stretching to infinity in both directions. To be "not real" you must be unable to do that. We call "not real" numbers "imaginary" numbers. They are numbers which are derived from the square root of -1. If you think about it, what number can be multiplied by itself and you end up with -1. In the real numbers, there isn't one. So we have imaginary numbers. They are written using Euler's notation where i represents the square root of -1. So, to answer your question, i is a "not real" number.
What is the Multiplicative Identity for rational numbers?
It is 1, as it is for all complex numbers - which includes real numbers.
Are real numbers rational numbers?
Some are and some aren't. 62 is real and rational. 1/3 is real and rational. sqrt(2) is real and irrational. (pi) is real and irrational.
What real numbers are equal to their cubes?
1 = 13; -1 = (-1)3.
