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### 5 Cards in this Set

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 A number b such that a2 = b. (sq root b) is the principal square root. -(sq root b) denotes the negative square root of b. square root A number of the form (sq root b). The expression is called the principal (or positive) square root of b principal square root A number of the form -(sq root b), which is the negative square root of b negative square root The expression under the radical sign radicand Numbers whose square roots are integers or quotients of integers. perfect squares