Complex Number: Number of the form a + bi, where the real part is a and the imaginary part is bi; both a and b are real numbers and i is the square root of -1.
Complex number plane: A plane with perpendicular number lines, where the horizontal is the real part of a complex number and the vertical one is the imaginary part.
Conjugates: Binomials in the form a√b +c√d and a√b -c√d for which a, b, c, and d are rational numbers.
i It is the imaginary unit. The one to indicate the imaginary part of a complex number. i is the square root of -1.
Imaginary Number: A number in the form of bi, where i2 = -1 and thus i is the square root of -1.
Real number: Any number rational or irrational, with exception of the imaginary numbers all numbers are real numbers.
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