## Complex numbers

A complex number is a number that can be expressed in the form a + bi where 'a' and 'b' are real numbers and 'i' is the imaginary unit, which satisfies the equation i^{2} = -1.

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A complex number is a number that can be expressed in the form a + bi where 'a' and 'b' are real numbers and 'i' is the imaginary unit, which satisfies the equation i^{2} = -1.

Have questions? Read the instructions.