2011高三·河北·专题练习
1 . 已知y=f(x)满足f(n﹣1)=f(n)﹣lgan﹣1(n≥2,n∈N)且f(1)=﹣lga,是否存在实数α、β使f(n)=(α
+βn﹣1)lga对任何n∈N*都成立,证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc561a7e70c2a2389b65f8d9418d852.png)
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2011·江苏淮安·模拟预测
解题方法
2 . 已知
,(其中
)
.
(1)求
;
(2)求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eafd0aacdcbc234414cc24ef45a93eeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9158db048850992ae4cace688253bf4c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(2)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5818ede14d21f6df9ef9c2bfe09286c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b5fb802bea8359d042dfd7d9a8cedcb.png)
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10-11高二下·江苏盐城·期中
3 . 数列
中,
.
求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec99c57bf7997bd93e1ed8f48d5af9a.png)
猜想
的表达式,并用数学归纳法加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c48ee1c067274ee0a77958fcdd33ca2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf1693d7d386d92a5ab540f194251cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec99c57bf7997bd93e1ed8f48d5af9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd23eefdd44e679b004f2c978e87208e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
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10-11高二下·广东中山·期中
4 . 已知数列{an}是正数组成的数列,其前n项和为Sn,对于一切n∈N*均有an与2的等差中项等于Sn与2的等比中项.
(1)计算a1,a2,a3,并由此猜想{an}的通项公式an;
(2)用数学归纳法证明(1)中你的猜想.
(1)计算a1,a2,a3,并由此猜想{an}的通项公式an;
(2)用数学归纳法证明(1)中你的猜想.
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10-11高二下·福建·阶段练习
5 . 设数列
的前n项和为
,并且满足
,
(n∈N*).
(Ⅰ)求
,
,
;
(Ⅱ)猜想
的通项公式,并用数学归纳法加以证明;
(Ⅲ)设
,
,且
,证明:
≤
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be564b2a898921b894a6f17e4a4e9a35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9645bd4d2002993b90ec6d48f9c04f7.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
(Ⅱ)猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(Ⅲ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5558c083d34cbb0a58d3ce1dc6f5778e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e2f14851cfb978ff8f41d439f118f4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602a2c2d99e443b77060d53752d2f8a5.png)
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10-11高二·江苏·阶段练习
6 . 数列
中,
.
(Ⅰ)求
;
(Ⅱ)猜想
的表达式,并用数学归纳法加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c48ee1c067274ee0a77958fcdd33ca2.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec99c57bf7997bd93e1ed8f48d5af9a.png)
(Ⅱ)猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
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10-11高二下·浙江宁波·期中
7 .
=1+
(n>1,n∈N),求证:
(
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7355fea90322794bd9c892f113f5f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab049f1986097598b9a106314e2ad91e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea88016f672b8f54901e457cceecca1.png)
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10-11高二下·浙江温州·期中
8 . 已知数列
满足
,
.
(1)求证
;
(2)比较
的大小,并证明;
(3)是否存在
使得
,证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/937ce158fe772ae70cd797f6514a0779.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe50c26147bbdc9874ec6e60f38293a8.png)
(1)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06dfdac83e7aaac092e7e7a4e91a2e9d.png)
(2)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d514eb8dff80d4dc3f39de516b63b846.png)
(3)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a949b947e9961d4d68bfeb4e24ef40f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78816854e432159b3a2adddc45fbdede.png)
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10-11高二下·江苏南京·期中
9 . 用数学归纳法证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d9a8c5eee7531d1864f61e5d1cc3852.png)
您最近一年使用:0次
2016-11-30更新
|
1713次组卷
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6卷引用:2010-2011年江苏省南京六中高二下学期期中考试理数
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