名校
解题方法
1 . 已知曲线
的方程为
,过
作直线与曲线
分别交于
两点.过
作曲线
的切线,设切线的交点为
.则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99296bab1b42898e7ca336a822510258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/128aa322f3e76e8f03a7402bb2b2ae25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/089535b1341bfc25dd0471ca0d7b90b2.png)
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2 . 若过点
仅可作曲线
的两条切线,则
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c3091b94ba135ae28c882c9b71aacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa17e5fa6b3de4403149e2f39feaaee5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
3 . 已知曲线
与曲线
在第一象限交于点A,记两条曲线在点A处的切线的倾斜角分别为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0458391f9512c0185cc2c9d9a08c217.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/774f568f587addd61406bb56bc3728ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8874a2c6ebcf2c9d24584ac8fda3da5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f0e40d271fdd630eb9da1b5cb8894ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0458391f9512c0185cc2c9d9a08c217.png)
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4 . 若两个函数
和
存在过点
的公切线,设切点坐标分别为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da03fbf994015e5a3a03de28734e0a1a.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc91186336b2d99e88fe87e381c775c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028e90690c7cf3cd03405f2c7bc07122.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7362fa526a84b0ce2f5a2021dbc44399.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f455378328d1f31e18c413f327cb81a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da03fbf994015e5a3a03de28734e0a1a.png)
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解题方法
5 . 过点
可以向曲线
作
条切线,写出满足条件的一组有序实数对![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5e761af39bc1725915c3c9ee7febee.png)
__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c044bcf4b87cd1575198ab30c3a037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545ac68beedab0a5490f97c88437a317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5e761af39bc1725915c3c9ee7febee.png)
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名校
6 . 若曲线
在点
处的切线过原点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffd29b2e8192d673308bdf8d5cb6cab.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6263576e5c3f2324a8dac311476bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b62194097ac66a5093c57fca2f5b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffd29b2e8192d673308bdf8d5cb6cab.png)
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2024-04-19更新
|
608次组卷
|
2卷引用:山西省吕梁市2024届高三下学期4月高考模拟考试数学试题
7 . 已知定义在
上的函数
满足
,当
时,
.若在区间
内,函数
有三个不同零点,则实数
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dbd12777cfb1d25adafc0dc291e737b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b73bd720b63a61cd13c083f44688d5f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc873fc03e6e4d3c4ba02f8b1147b20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f930c4decb342420e3495571bf993c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00210f79b04a8f6bc1922433d00bc89a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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8 . 已知函数
的图象上存在三个不同的点
,使得曲线
在
三点处的切线重合,则此切线的方程为__________ .(写出符合要求的一条切线即可)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efbeb597fcc89a837b20c421bf8e63c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
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9 . 过点
作曲线
的切线,请写出切线的方程______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6603d0aa20d5855490c5d16e8634477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/938ff61757a67f266a910219fa0dd995.png)
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10 . 若曲线
的一条切线为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db192285632d1991b4ee7a003a52205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292c3b844f1c01b6431efbc84e50c6cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
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