Category:Complex numbers
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The complex numbers are an extension of the real numbers, in which all non-constant polynomials have roots. The complex numbers contain a number i, the imaginary unit, with i2= −1, i.e., i is a square root of −1. Every complex number can be represented in the form x + iy, where x and y are real numbers called the real part and the imaginary part of the complex number respectively.
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