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numbers that are not real numbers, such as the square roots of negative numbers. Imaginary numbers are also called unreal or non-real numbers.
a measure of statistical distribution that represents the difference between the first and third...
trigonometric ratio, expressed as opposite side divided by hypotenuse.
a visual representation of all the information given in a finance problem concerning investments...
a periodic function is one that repeats after a given interval. The period is therefore the...