1 . 已知函数
.(e为自然对数的底数,
)
(1)若
,求
的图象在
处的切线方程;
(2)若
,证明:存在实数
使得方程
恰有三个不同的根,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9dd1d551281685ff7901cacaacb89a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797bbd18359c9a29842b39109b3a0aac.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db8f867196410e2828e2bbd3183b02d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ffd05445e62cf6352e48d073fac779.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/224fe2462f229debd7cdd674f9a07d56.png)
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解题方法
2 . 台州是中国黄金海岸线上的一个年轻的滨海城市,位于浙江省沿海中部,上海经济区的最南翼,旅游资源非常丰富,历史上有“海上名山”之美称.C为某海岛所在位置,A为游船码头,B为游客中心,AB表示海岸线,且
,
.为更好的发展海上旅游资源,某旅游公司计划修建海上观光栈道,观光栈道由CD和线段
,
组成,其中
所在的圆以A为圆心,以1km为半径.游客先从游船码头A乘船到海岛C游玩,返回时可乘船返回A,也可通过栈道
,
返回到A或者经由栈道
,
到B.设
.
(1)若
,求BD的长度.
(2)AC为游船线路,不需要另加投资.已知修建栈道
,
的成本为每千米2百万元,修建栈道
的成本为每千米
百万元.旅游公司的投资预算不超过5百万元,则预算是否足够?说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61322bc59ed9c2419acf31d42ce4d17f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bb3820bab977db734f4335e4fde720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bb3820bab977db734f4335e4fde720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bb3820bab977db734f4335e4fde720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2efb46714efa6a13a121e2a7f89412.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a40d2cf43fce0c99dff3470d554eb8.png)
(2)AC为游船线路,不需要另加投资.已知修建栈道
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bb3820bab977db734f4335e4fde720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
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名校
解题方法
3 . 设复数
,i为虚数单位,且满足
.
(1)求复数z;
(2)复数z是关于x的方程
的一个根,求实数p,q的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60f543c26ef2de07fb132ba386a8b498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e3260b0b3ceeefc3584c1c196ebe24.png)
(1)求复数z;
(2)复数z是关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783a7b78d895784b4af75b962bd40f07.png)
您最近一年使用:0次
2023-07-03更新
|
403次组卷
|
2卷引用:浙江省杭州市临安中学2023-2024学年高二上学期开学考试数学试题
名校
解题方法
4 . 已知函数
.
(1)若
,求函数
的单调区间;
(2)若函数
有两个不相等的零点
,极值点为
,证明:
(i)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f3c5f58533333aae111003747b68e2e.png)
(ii)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c7847abd5a830ff448f260b5107ac52.png)
注:
为自然对数的底数,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/297a01765881cde7204d0c62678cb318.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c712829d60b4ea93966a5c68c24d677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(i)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f3c5f58533333aae111003747b68e2e.png)
(ii)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c7847abd5a830ff448f260b5107ac52.png)
注:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dcd143a57a268a5a8ef486e2a4d5c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11204e2fb6e560bf7a4ca26eaebfc526.png)
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5 . 已知函数
.
(1)求
的单调区间;
(2)若
有3个不同的零点
.
(i)求实数a的取值范围;
(ii)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a427726dbe090ddd6b2b505cd038fad2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9d5677fc7ab23725ce09128ee2eb800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
(i)求实数a的取值范围;
(ii)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e3e314ba3551462736c2c88eceb3576.png)
您最近一年使用:0次
解题方法
6 . 已知函数
为自然对数的底数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
(1)当
时,求函数
的最大值;
(2)已知
,且满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec86d97f296dba99039c770d823c6d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42fd7af568e3d9f444beb0ff41426477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4624a648f30189a10c8b6683b190ce5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a880fbf9a31843db8afe06291d3225ae.png)
您最近一年使用:0次
解题方法
7 . 已知函数
,
.
(1)若
,求函数在
处的切线方程;
(2)若存在实数
,
,使
,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eec4e583b3c419aff8519f6af7eb469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
(2)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d4550c9106dfc357e85af8b22a7c260.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55fe140ec525eef1f3ed662d2fedb5d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e21ac584efecd770c2dd9d2e83803a.png)
您最近一年使用:0次
8 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/232d1ce3ad14256b1543e6007ff1675d.png)
(1)当
时,求曲线
在点
处的切线方程;
(2)若
,总有
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3941b84c92eb8ce063f0417d29134847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/232d1ce3ad14256b1543e6007ff1675d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e69866076dcff686a05e9e91e61e68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea59cee971344ed593ff082a65d177c2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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9 . 已知函数
有两个极值点
,
.
(1)求实数
的取值范围;
(2)证明:存在实数
使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dfbebe96106abe60a93fa0a23ad3e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd888afdcfdb3e91a157d50f65e915e.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/845251f43a24e8ad29e7db8e571d1930.png)
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10 . 关于x的一元二次方程
有两个根
,其中
.
(1)求a的值;
(2)设
在复平面内所对应的点分别为A,B,求线段AB的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de689737c75485d1f181249de06c0237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/591a0b028f29d0da735c7ccf18a16681.png)
(1)求a的值;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
您最近一年使用:0次