Chapter 9 (Radicals and Complex Numbers) Review

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What is a radical in mathematics?

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A radical is an expression that includes a root, such as a square root (√) or cube root (∛). It represents the inverse operation of exponentiation.

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What is the principal square root of a number?

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The principal square root of a number is the non-negative root of that number. For example, the principal square root of 9 is 3.

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What is a complex number?

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What is the conjugate of a complex number?

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