2012年成人高考《数学(理工农医类)高起点》冲刺试卷(1)
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三、解答题:本大题共4小题,共49分。解答应写出推理、演算步骤。
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![](//wximg.233.com/attached/image/20120914/20120914162152195219.jpg)
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![](//wximg.233.com/attached/image/20120914/20120914161131893189.jpg)
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![](//wximg.233.com/attached/image/20120914/20120914160218571857.jpg)
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![](//wximg.233.com/attached/image/20120914/2012091415430166166.jpg)
(Ⅰ)求a,b的值;
(Ⅱ)求f(x)的单调区间与极值;
(Ⅲ)求曲线f(x)在点(2,2)处的切线方程.
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![](http://wximg.233.com/attached/image/20120914/20120914162152195219.jpg)
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![](http://wximg.233.com/attached/image/20120914/20120914161131893189.jpg)
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![](http://wximg.233.com/attached/image/20120914/20120914160218571857.jpg)
25、
![](http://wximg.233.com/attached/image/20120914/2012091415430166166.jpg)
(Ⅰ)求a,b的值;
(Ⅱ)求f(x)的单调区间与极值;
(Ⅲ)求曲线f(x)在点(2,2)处的切线方程.