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What is a complex number?????

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Answer:For example, 2 + 3i is a complex number. This way, a complex number is defined as a polynomial with real coefficients in the single indeterminate i, for which the relation i2 + 1 = 0 is imposed. ... The real number a is called the real part of the complex number a + bi; the real number b is called its imaginary part.

Step-by-step explanation: Hope this helps

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A complex number is a number that can be written in the form a + bi where a and b are real numbers that are not equal to 0.

For example, 1 + 2i is a complex number and so is -5 - i
√(7)

In other words, a complex number is the sum or difference of a real number and an imaginary number.

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