2023高三·全国·专题练习
1 . 已知三角形的三边长分别为
,且
为正数,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e1db5294b043485152f5f8e904344c.png)
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2023高三·全国·专题练习
2 . 在斜△
中,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3400ae61a4c578c5390403472e4d783e.png)
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2023高三·全国·专题练习
解题方法
3 . 已知
,
,
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13fbc0b262d46e097d9c96557321dd88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d5556dd86322752a457b3a6ba979c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c79de030dea51c5e80e233b44788de.png)
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解题方法
4 . 已知函数
,其中
.
(1)若
,求实数
的取值范围;
(2)证明:函数
存在唯一零点;
(3)设
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5faf097501529bae12117c6a9576f840.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3ce5820ca9e8f9b6398c2462d1396a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36825543013336c9df727bc51ff62c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921882a3b6a472935b3e9c7f5dcebddc.png)
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名校
解题方法
5 . 已知函数
,
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c85467b0027305f2d3757b0ba5bf8b.png)
(1)若
,且
,试比较
与
的大小关系,并说明理由;
(2)若
,且
,证明:
(i)
;
(ii)
.
(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1060c34e676f9e4048f396023fa6a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b87dad80ff155f615b17fbe8bf4db00a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c85467b0027305f2d3757b0ba5bf8b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/477401fbd54f365121b648e4d8fcf38b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f13c49cbcdca5ed2e81d229819357b9.png)
(i)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc6ecd08de6b156b5fa2bda453c855f3.png)
(ii)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe64030d6e08f7607b7e3d9a724a79c9.png)
(参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9e0f63cd71701bdf260b1510c72ee8f.png)
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解题方法
6 . 已知函数
,其中e是自然对数的底数.
(1)若关于x的不等式
在
上恒成立,求实数m的取值范围;
(2)已知正数a满足:
,试比较
与
的大小,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c79728eda595218be2154adf12590b.png)
(1)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aea897547a3c134c8d39e8ab3173ba76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
(2)已知正数a满足:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac10f3518a6b80e4dfd43e5dd5620fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0b52fba05677343daa1d9e8cffc40d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df45bf44f25112b0ef26da665f194ef5.png)
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2022高三·全国·专题练习
7 . 求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5639c228d569709d3292f6ed4cff2ead.png)
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8 . 已知函数
.
(1)若不等式
;对任意
恒成立,求实数
的取值范围;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc873fc03e6e4d3c4ba02f8b1147b20.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1a05127c1b5bebb87314366af7cc0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6330540758a21f46fc7a6d1e6328d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd6c4a563fc7e1b964c90bd305b91a85.png)
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9 . 已知定义在R上的函数
的图象是一条连续不断的曲线,且在任意区间上
不是常值函数.设
,其中分点
将区间
分成
个小区间
,记
称为
关于区间
的n阶划分的“落差总和”.当
取得最大值且n取得最小值
时,称
存在“最佳划分”
.
(1)已知
,求
的最大值
(不必论证);
(2)已知
,求证:
在区间
上存在“最佳划分”
的充要条件是
在区间
上单调递增.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2775ffdf695af2d263f0ea93ac5904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2775ffdf695af2d263f0ea93ac5904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46bba6c64cf0ba9cf41d820c1f4a6739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0402967f2c4db0692f713303c06f93f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098afe75dd67aa4c2d1f0b6616c4c1ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5810d8724bf005247c3a75a756468c3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86e8b12a48ff6d675c67b843132522bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2775ffdf695af2d263f0ea93ac5904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce5d760f3a7148a9cd0413eb3867b4ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d7e9f86738335a22298559db41037a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2775ffdf695af2d263f0ea93ac5904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8653b2a0f72f531e24ea1368f91b20.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42ef85125cb753352d02781b621ac3b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514d3e0c59cbfec0a877ec5d13069cb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb44db1dc864ff4901be1e10da79747.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f6678ae99d8fe18fe615993bf3ad70c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2775ffdf695af2d263f0ea93ac5904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4b6c4fb400d835efe1f10e67d005ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2775ffdf695af2d263f0ea93ac5904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
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10 . 已知函数
,
,各项均不相等的数列
满足:
,令
.
(1)试举例说明存在不少于
项的数列
,使得
;
(2)若数列
的通项公式为
,证明:
对
恒成立;
(3)若数列
是等差数列,证明:
对
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e40eb99ee3e13901131e3f8298249adb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ffd2c4dae9a37f660e23ccea5ef320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c760bfcfc098d43c5bc53b69a47b354.png)
(1)试举例说明存在不少于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8012e76568382d926efc9cc61180fd8e.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d148722b401b72d790322700cbf101.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b896f09c72d6c82c5856f441cbbd27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad52924df9291d5d191d18e09374ee1.png)
(3)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d025f0a6755c2c4ea1c367a14d65ab2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
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2021-06-19更新
|
371次组卷
|
4卷引用:考向14 等差数列-备战2022年高考数学一轮复习考点微专题(上海专用)
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