江苏省泰州市高中数学第3章指数函数、对数函数和幂函数3.1.1分数指数幂(一)根式同步训练(无答案)苏教版必修1.doc

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江苏省泰州市高中数学第3章指数函数、对数函数和幂函数3.1.1分数指数幂(一)根式同步训练(无答案)苏教版必修1.doc_第1页
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1分数指数幂(一)根式一、填空题1已知 m102,则 m_.2计算 14 2的结果是 .3化简 的值是_3 81254化简 等于_ e 1 e 2 45若 2a3,化简 的结果是_ 2 a 2 4 3 a 4652 的平方根是_ 67化简 的结果为_ 4 2 3 4 38若 x0,则| x| _.x2x2|x|9. _.3 223 2210把 a 根号外的 a 移到根号内等于_ 1a二、解答题11求 的值3 6 3 4 5 4 4 3 5 4 312设 f(x) ,若 0a1,求 1fax2 413化简 .x2 2xy y2 7 y x 72三、探究与拓展14化简(1 a) _.4 1(a 1)315(1) ;614 3338 30.125(2) .3 8 3 4 3 2 4 3 2 3 3

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