12-13高二上·山东济宁·期末
1 . 已知函数
,
,且
,当
时,
是增函数,设
,
,
,则
、
、
的大小顺序是.
![](https://img.xkw.com/dksih/QBM/2013/4/1/1571168861904896/1571168867237888/STEM/57ca4c5024584fb881200c2322a7c729.png)
![](https://img.xkw.com/dksih/QBM/2013/4/1/1571168861904896/1571168867237888/STEM/d18ad0d715fa4c35b10fd801623f39ae.png)
![](https://img.xkw.com/dksih/QBM/2013/4/1/1571168861904896/1571168867237888/STEM/d7cd5caf2b464cedb2461df1dfa335c5.png)
![](https://img.xkw.com/dksih/QBM/2013/4/1/1571168861904896/1571168867237888/STEM/1906fb830c5b4402b6991c757e6ad27e.png)
![](https://img.xkw.com/dksih/QBM/2013/4/1/1571168861904896/1571168867237888/STEM/57ca4c5024584fb881200c2322a7c729.png)
![](https://img.xkw.com/dksih/QBM/2013/4/1/1571168861904896/1571168867237888/STEM/ab5f987978fd4ffbbfab41883f5b73cb.png)
![](https://img.xkw.com/dksih/QBM/2013/4/1/1571168861904896/1571168867237888/STEM/e259aa8588df40fb880d55f7099f2d39.png)
![](https://img.xkw.com/dksih/QBM/2013/4/1/1571168861904896/1571168867237888/STEM/95515ae361d44330b22767ceb84d26d3.png)
![](https://img.xkw.com/dksih/QBM/2013/4/1/1571168861904896/1571168867237888/STEM/7345a8c4098b47468cd65e1b87abac9d.png)
![](https://img.xkw.com/dksih/QBM/2013/4/1/1571168861904896/1571168867237888/STEM/0c4e45c4d5864ec792f820548fb9ac99.png)
![](https://img.xkw.com/dksih/QBM/2013/4/1/1571168861904896/1571168867237888/STEM/b052e3f609a64c748163831ce925e6dc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 已知等比数列
的公比
,其前
项和为
,则
与
的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411641715d7f5132c34f1d6eace8cd8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a8e470ec51f575a69df6130ab619e38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfcfded5e49594f8200000596670f226.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
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3 . 设
,则
与
的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb8b8645a4cd5e41664b349bc1d2c4ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/361a09cdaa9098987eefa60e98b79a00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6b3ebec7a13c00d1b89f94b26e4a164.png)
A.![]() | B.![]() |
C.![]() | D.大小不确定 |
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2017-07-28更新
|
643次组卷
|
2卷引用:内蒙古北京八中乌兰察布分校2016-2017学年高二下学期第二次调考数学(文)试题
4 . 已知定义在R上的可导函数
满足
,设
,
,则 a、b的大小关系是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d76fd9b593727147276c5ba1d7c93a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f83cee6a89e9d71348029265919d4581.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70e6a8a04a04f8e2b8a964ff580410b.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
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5 . 已知定义在
上的可导函数
满足
设
,则
的大小关系是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceec441fee8121b8b030438a518e521c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d140c889b03acddd985e7ab453711b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
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2017-03-08更新
|
756次组卷
|
3卷引用:2016-2017学年福建省漳州一中高二上学期期末考试数学(文)试卷
6 . 已知点An(n,an)(n∈N*)都在函数f(x)=logax(a>0且a≠1)的图象上,则a2+a10与2a6的大小关系为
A.a2+a10>2a6 |
B.a2+a10<2a6 |
C.a2+a10=2a6 |
D.a2+a10与2a6的大小与a有关 |
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真题
7 . 如图,在直三棱柱
中,平面
侧面A1ABB1.
(Ⅰ)求证:
;
(Ⅱ)若直线AC与平面A1BC所成的角为θ,二面角A1-BC-A的大小为φ,试判断θ与φ的大小关系,并予以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21dee56b9f36ba8f76fe67b76383636b.png)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
(Ⅱ)若直线AC与平面A1BC所成的角为θ,二面角A1-BC-A的大小为φ,试判断θ与φ的大小关系,并予以证明.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/b28f4071-53aa-4014-995c-ca4e7f2d90af.png?resizew=151)
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2016-11-30更新
|
1711次组卷
|
6卷引用:2011-2012学年河北省正定中学高二第一学期期末考试文科数学试卷
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9-10高三·广东广州·阶段练习
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8 . 已知点
(
,
)(
N*)都在函数
(
)的图象上,则
与
的大小关系是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://img.xkw.com/dksih/QBM/2010/10/19/1569858166333440/1569858171338752/STEM/d75ef090ca6d4829995c1ae459f12c27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da53929a8f67b9aa3827fdbd73ebd265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65b23b77fee4f8a837b32973bb26aa97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f596d3e0ea522292d6b6fa8b3032fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c8afb5276cccd088ed7cada99858bff.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() ![]() |
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