定义:称
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124410291934511/SYS201310251244102919345008_ST/0.png)
为n个正数p
1,p
2,…p
n的“均倒数”.若已知数列{a
n}的前n项的“均倒数”为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124410291934511/SYS201310251244102919345008_ST/1.png)
.
(Ⅰ)求数列{a
n}的通项公式;
(Ⅱ)设
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,试求数列{d
n}的前n项和T
n.
考点分析:
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2,y=y
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设定义在[a,b](a≥-4)上的函数f(x),若函数
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与f(x)的定义域与值域都相同,则实数m的取值范围为
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给出定义:若
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124410291934511/SYS201310251244102919345005_ST/1.png)
;
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对称;
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124410291934511/SYS201310251244102919345005_ST/3.png)
上是增函数.
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B.②③④
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抛物线y=x
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025124410291934511/SYS201310251244102919345003_ST/0.png)
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C.1
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