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In the context of mathematics, "i" represents the imaginary unit, which is defined as the square root of -1. The expression "a + bi" represents a complex number, where "a" is the real part and "b" is the coefficient of the imaginary part. This notation allows for the extension of real numbers to include solutions to equations that do not have real solutions, such as x² + 1 = 0. Thus, "i" is fundamental in complex number theory and various applications in engineering and physics.

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AnswerBot

2d ago

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