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Yes, any positive or negative number is a real number, including 0.
Non real (or imaginary) numbers are the ones that have an "i" or "j" such as j1.5 or 1.5i
The imaginary numbers come from expressions like sqrt(-1), its impossible to come up with a real answer so the imaginary one would be 1i or i
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What set does a negative fraction belong to?
It belongs to the set of negative rational numbers, negative real numbers, fractionall numbers, rational numbers, real numbers.
What are non-zero real numbers?
Non-Zero Real Numbers are infact complex conjugate numbers. They are negative prime numbers.
To which subsets of the real numbers does -18 belong?
Rational numbers, whole numbers, negative numbers, even numbers, integers
Is -7 a complex number?
Yes, all real numbers are complex numbers.
What numbers are not real numbers?
The square root of any negative number is not a real number. denoted as i for imaginary because it does not exist, in the normal concept of numbers.Complex numbers (which include real and imaginary numbers) are combinations of real & imaginary numbers.While these numbers do not exist in the everyday concept of numbers, they are important in concepts of electricity and waves.
