1.要使式子(a分之根号a+2)(这是一个分式)有意义,a的取值范围________2.若X,Y为实数,且|X+2|+根号Y-2=0,求(Y分之X)2009的次方的值.3.若|a-2|+根号b-3=0,则a的平方-b=___________4.计算 根号(3.14-π)
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![1.要使式子(a分之根号a+2)(这是一个分式)有意义,a的取值范围________2.若X,Y为实数,且|X+2|+根号Y-2=0,求(Y分之X)2009的次方的值.3.若|a-2|+根号b-3=0,则a的平方-b=___________4.计算 根号(3.14-π)](/uploads/image/z/10164928-40-8.jpg?t=1.%E8%A6%81%E4%BD%BF%E5%BC%8F%E5%AD%90%EF%BC%88a%E5%88%86%E4%B9%8B%E6%A0%B9%E5%8F%B7a%2B2%EF%BC%89%EF%BC%88%E8%BF%99%E6%98%AF%E4%B8%80%E4%B8%AA%E5%88%86%E5%BC%8F%EF%BC%89%E6%9C%89%E6%84%8F%E4%B9%89%2Ca%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4________2.%E8%8B%A5X%2CY%E4%B8%BA%E5%AE%9E%E6%95%B0%2C%E4%B8%94%7CX%2B2%7C%2B%E6%A0%B9%E5%8F%B7Y-2%3D0%2C%E6%B1%82%EF%BC%88Y%E5%88%86%E4%B9%8BX%EF%BC%892009%E7%9A%84%E6%AC%A1%E6%96%B9%E7%9A%84%E5%80%BC.3.%E8%8B%A5%7Ca-2%7C%2B%E6%A0%B9%E5%8F%B7b-3%3D0%2C%E5%88%99a%E7%9A%84%E5%B9%B3%E6%96%B9-b%3D___________4.%E8%AE%A1%E7%AE%97+%E6%A0%B9%E5%8F%B7%EF%BC%883.14-%CF%80%EF%BC%89)
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