adding and subtracting imaginary numbers

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What is an imaginary number?

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An imaginary number is a complex number that can be written as a real number multiplied by the imaginary unit 'i', where i is defined as the square root of -1.

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What is the imaginary unit 'i'?

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How do you add two imaginary numbers?

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How do you subtract two imaginary numbers?

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What is the general form of a complex number?

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