2021高二·江苏·专题练习
解题方法
1 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13ff229e8416c2ff6e7208771acbf9b6.png)
(1)不等式
对于任意的
恒成立,求实数a的取值集合;
(2)若函数
与函数
的图象有且仅有一条公切线,求实数a的取值集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ca6fa9955690cec01db601e3abce0c.png)
(3)设
,
,若函数
有两个极值点
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10859140f06705b580f3ac3807e58d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13ff229e8416c2ff6e7208771acbf9b6.png)
(1)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae4b12d8a282854010fdec8e2ec106d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d9c89d2cd1fb46b1e71ad10227c098.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5946299ed8f8c741a82c8d920e1e206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ca6fa9955690cec01db601e3abce0c.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1163dc4158acac142a1d670eeab8ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ba925278baa53ad23a953fe62f2e36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b479d1beea3cd559d9225da950a76eaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760effa3c34aefb5d6bbd0e7ca0d48fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d6fe150b0a721696c8c063999ba38d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eae59a693d0d39d7afacbed93eb0abe9.png)
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2021高二·江苏·专题练习
名校
2 . 抛物线C:
的焦点为F,P为其上一动点,当P运动到
时,
,直线l与抛物线相交于A,B两点,点
,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b35f0b940c8422ef47edc3b7ce55e47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32293d25fb98c1d6b858234b23081010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0a0328dde917c3e6d0f1ca9ddb6027b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb2a5c155717f3a59d7818b4bbdf44e9.png)
A.抛物线的方程为![]() |
B.![]() |
C.当直线l过焦点F时,以AF为直径的圆与x轴相切 |
D.若过A,B的抛物线的两条切线交准线于点T,则A,B两点的纵坐标之和最小值为2 |
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2021高二·江苏·专题练习
3 . 已知函数
.
(1)若函数
的图象在
处的切线过点
,求
的值;
(2)当
时,函数
在
上没有零点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c64479cc022fcf1cc0f728344df5d34.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b0113fd4c7d157757571f9a009e02af.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0837a23722da82801d7678e42bf4da.png)
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2021高二·江苏·专题练习
4 . 已知函数
,
(1)求曲线
在点
处的切线与坐标轴围成三角形的面积.
(2)
是
的导函数,若函数
有两个极值点
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9ea9b01cf309d9e0e8f16ab420d861d.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf965b9d9fdd01079a17ff0507956f1.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/272f48ae2fb160c27990135115234348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec4e1b7cda0c9c097d91a3853d243ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d38215744ac397526dd72dc7de9c7c.png)
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2021高二·江苏·专题练习
5 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf66dcab4588d9837388918e71d86065.png)
(1)若函数
在
处的切线与函数
的图象平行,求a,b满足的条件;
(2)若
,且
恒成立,求实数a的取值范围;
(3)当
时,讨论方程
的根的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6263576e5c3f2324a8dac311476bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf66dcab4588d9837388918e71d86065.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/187c21027ff08411931d32c530b64fd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500fbb8e12c29160f53cb1ecc5f9f9bd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44dd9c3304c12211c3552028eb7778d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473e8289f2c3d8b59a0212832f9d6750.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86304c3e26200299a0480641525a283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9d2ec53b642f5fe227480d970223fb4.png)
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6 . 已知
,函数
,
.
(1)讨论
的单调性;
(2)过原点分别作曲线
和
的切线
和
,求证:存在
,使得切线
和
的斜率互为倒数;
(3)若函数
的图象与
轴交于两点
,
,且
.设
,其中常数
、
满足条件
,
,试判断函数
在点
处的切线斜率的正负,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7600c9a7de088a9f88bf0447e22d0bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4abdb0052a30184ec7bdc7e4fbd3922c.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)过原点分别作曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34c89383005bfac28c6275a2066812c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ec3d75e53b990bc8f9a4622928dd21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b583230a32b774445332490c511989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d41acc47493556617fe7b9e55093d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c4c4da64a6032e6d70d01bf4221ce1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6096acdd2d0ce16e1e45397ec5e365d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faa3cf236e5419c342822f491f1afdc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4e432770f6b6ec7e90e15ff596cfda.png)
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2021-11-23更新
|
1092次组卷
|
6卷引用:收官卷04--备战2022年高考数学一轮复习收官卷(新高考地区专用)
(已下线)收官卷04--备战2022年高考数学一轮复习收官卷(新高考地区专用)山东省潍坊市2021-2022学年高三上学期期中数学试题湖南省衡阳市第八中学2021-2022学年高三上学期第五次月考数学试题安徽省合肥市第一中学2022届高三下学期素养拓展2理科数学试题(已下线)高二数学下学期期中精选50题(压轴版)2021-2022学年高二数学下学期考试满分全攻略(人教A版2019选修第二册+第三册)山东省菏泽市菏泽一中八一路校区2024届高三上学期11月月考数学试题
7 . 已知函数
(
).
(1)当
时,求曲线
在点
处的切线方程;
(2)若
在
上有零点.
①求实数
的取值范围;
②设函数
,记
在
上的最小值为
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/872db9de515004d67036c5f0d99f0a0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f3e97e160b482e94f1316dccce6921d.png)
①求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37502e27db9329cfed55c51f9414b19b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c9aeed3c8c5a04e48d011c607f9142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a90170d7ef5ff6d1d63517c166f7a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a90170d7ef5ff6d1d63517c166f7a9.png)
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2021高二·江苏·专题练习
8 . 已知函数
,函数
有2个零点,则实数a的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bf2b1c680561809a243b06b47e7840.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ba73a9551e498464b3e6d2bacee49.png)
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9 . 已知函数
,
(1)求曲线
在
处的切线方程;
(2)函数
在区间[0,2]上是否存在极值?试说明理由;
(3)当
时,关于
的不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c575784d69dd7c41f4856098f68aa44.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d37dafb12565279285111a5948d835b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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10 . 已知函数
.
(1)若
,求曲线
在
处的切线方程.
(2)函数
的图象上是否存在两点
,
,使得
(其中
)能成立?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89a6eb1b39894b8a890caa51eeb5dce4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8198c3b302b3820e86763428eb1e91cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3463ced6030af957f13f9ba05b977c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b72ae74eb467ca38e36da8078c5517.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c45b5bbd5fb7706c6f7c24df34fc145.png)
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