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一解答题一解答题 1计算:(1)(2) (2m2n2)2(3m1n3)32计算:3化简:4 (2007双柏县)化简:5 (2006襄阳)计算:6 (2005江西)化简(x29) 7 (2007北京)计算:8 (2005宜昌)计算:+ 9 (2001吉林)计算:(1);(2) 10 (2001常州)11计算:12计算:a113计算:(1)(2)14计算:a2+15计算:16化简:,并指出 x 的取值范围17已知 ab=1,试求分式:的值 18计算:19 (2010新疆)计算:20 (2009太原)化简:21 (2009上海)计算:22 (2009眉山)化简:23 (2009江苏)计算:(1); (2)24 (2009东营)化简:25 (2008白银)化简:26 (2007南昌)化简:27 (2007巴中)计算:28 (2006宜昌)计算:()29 (2006十堰)化简:30 (2006南充)计算:x2)