已知函数f(x)=
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+
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102739135697134/SYS201311031027391356971020_ST/1.png)
,曲线y=f(x)在点(1,f(1))处的切线方程为x+2y-3=0.
(Ⅰ)求a、b的值;
(Ⅱ)证明:当x>0,且x≠1时,f(x)>
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102739135697134/SYS201311031027391356971020_ST/2.png)
.
考点分析:
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