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考点1 平方根与算术平方根例1 3~2的算术平方根是( )。(A)1/3 (B)3 (C)1/6 (D)6例2 9~(1/2)的算术平方根是( ).(A)3 (B)-3 (C)3~(1/2) (D)±3~(1/2)(答案:例1.A例2.C)评注例2必须理解9~(1/2)表示的正数为3,题目即要求3的算术平方根.
The square root of the test 1 square root and the arithmetic square root 1 3~2 are the square root of the arithmetic (). (A) 1/3 (B) 3 (C) 1/6 (D) The arithmetic square root of 6 9~(1/2) is (). (A) 3 (B) - 3 (C) 3~ (1/2) (D)±3~(1/2) (Answer: Example 1.A Case 2.C) Commentary Example 2 It must be understood that 9~(1/2) represents a positive number of 3, and the title is a requirement. The square root of 3 arithmetic.