1 . 斜率为
的直线
经过抛物线
的焦点,且与抛物线相交于
两点,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82039599168d4f4258b5649a604452e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2 . 若直线l:
与抛物线C:
恰好有一个公共点,则实数
的值构成的集合为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b93ea160a01a3316759a4bb04ece83fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f773e2ceaff0e2c54b432b649f2411f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
3 . 若函数
在
上单调递增,则实数
的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda70c95d7cfa0cf1dfffec3625954d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 设函数
,若
,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a7fd87291a8630dfc4d320d9c71e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c0c8a69ac6a6b984d4344ebfe44baea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
A.![]() | B.![]() | C.![]() | D.2 |
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名校
5 . 双曲线
的渐近线方程是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7666eaa3e6df2b8166556bfe02b471.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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6 . 已知偶函数
(
)在点
处的切线与直线
垂直,函数
.
(Ⅰ)求函数
的解析式.
(Ⅱ)当
时,求函数
的单调区间和极值点;
(Ⅲ)证明:对于任意实数x,不等式
恒成立.(其中e=2.71828…是自然对数的底数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bd0587f5d6a3b5db9e4a93e0dbc0ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5752e45ff2e39a2b95cfc63e50ea077b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7258818798c1e64a5bbdd88b15037aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38df4f50e79d6e1937b56ee1e2d5d5cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68988b767006214398f9e1ad92fa7c16.png)
(Ⅰ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/700ad0541fff4a264dcd9a5bd5c6bb34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(Ⅲ)证明:对于任意实数x,不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e79772f1c92d9d2562ac7ec3cde07462.png)
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7 . 抛物线
的焦点为
,过点
的直线与该抛物线相交于
两点,直线
分别交抛物线于点
.若直线
的斜率分别为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af41ccb8328510b272cd02ecc2a9622.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4f38ebe4a0e34f1db66378550a0eadd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb398137779190b35492d9f06d5fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d850b4173a964b079049011fb25380ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a5b099b9112ed6a9f71b4a65875ccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d01bee924fc8d52776c8a36a1c0490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6397afb309b18e6d8a98e1c7e62cfa61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af41ccb8328510b272cd02ecc2a9622.png)
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8 . 若函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b269dce1ae3396d2afc82a91dc6f97ba.png)
有极值点
,且
,则关于
的方程
的不同实根的个数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b269dce1ae3396d2afc82a91dc6f97ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46fe88b7ee3c7547dfe22a238f6fcfca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeeb4e1a1eeeea683c3a780164ba09fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e4d84467d13bfb41a3d834f98c0297e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4352b7136335ce4375f1a8bbb946b2ee.png)
A.5 | B.4 | C.3 | D.2 |
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9 . 已知P为抛物线
上的动点,点P到直线y=-1的距离为d,定点
,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d295a4cc3a58f9f38ee98337313c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc0c5148cd6cf6c5bb75cae2d1500c86.png)
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10 . 设m是一个非负整数,m的个位数记作
,如
,
,
,称这样的函数为尾数函数.给出下列有关尾数函数的结论:
①
;
②
,若
,都有
;]
③
;
则正确的结论的个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee53de59dde51125e85976f971dc9d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/941e386b4eaab6b92a9ebcc678734896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d798792867f5e328b969a4dfab54fc5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f94a1caa3d9007c8e0b337a27fd856d.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5448c0b24a1be067f25f8b3452c427.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/050f4807b669482d496e6bc086264fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f3f0bf97c664d0bf86d450a0cb9592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/250f7c541bda2a5de97f7925c1d9664c.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b30766b4589c4288fe4193d37a71986f.png)
则正确的结论的个数为
A.3 | B.2 | C.1 | D.0 |
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