1 . 已知函数
.
(1)若
的最小值为0,求a的值;
(2)若不等式
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34195963035bd029e05bc1bf5bf93163.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/706bce32d8fd4b45a80f162929d80012.png)
您最近一年使用:0次
2022-09-06更新
|
340次组卷
|
2卷引用:河北省邢台市名校联盟2023届高三上学期开学考试数学试题
2 . 已知函数
,则下列选项正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be83965ca4755567f7705d4fdcfcb0fa.png)
A.![]() ![]() ![]() |
B.![]() ![]() |
C.当![]() ![]() ![]() |
D.方程![]() ![]() |
您最近一年使用:0次
3 . 已知函数
.
(1)若
在
处的切线l与直线
平行,求切线l的方程;
(2)证明:当
时,对任意的
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b976b60df665ba96ad1fa3a0c99fdb0d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c6b6a11760d0724b0b60e55970e229.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3732b0e4d40be0f6be43983aad9f6d21.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f5f7a36e251bbc424ccc127ebb2881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea93d945af65e235981bffeef10eba6e.png)
您最近一年使用:0次
名校
4 . 已知函数
,
.
(1)讨论
的单调性;
(2)当
,
时,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d447b4a2fe1b0c37a7f9024a8abe42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f85207214ae25efd71aec5ed5e6fb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03fba6a6c02007b154015e84832eae90.png)
您最近一年使用:0次
2022-03-29更新
|
1743次组卷
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7卷引用:河北省唐山市海港高级中学2023届高三上学期开学检测数学试题
5 . 如图,在平面直角坐标系
中,已知抛物线
:
的焦点为
,过点
的直线交
于
,
两点(其中点
位于第一象限),设点
是抛物线
上的一点,且满足
,连接
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/58445276-b85d-42a2-9903-af1ded8d41bd.png?resizew=168)
(1)求抛物线
的标准方程及其准线方程;
(2)记
,
的面积分别为
,
,求
的最小值及此时点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9de36529148d5e73cc4ff68b8f5e3fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098966695fbdeca199a09a9510006257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6389381f3024d19a4a844b9c670afee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1642eec556eb252de9c1ab7bb5ca90b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/58445276-b85d-42a2-9903-af1ded8d41bd.png?resizew=168)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d01b9de38c02e28c475bf639727b59e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50524aaa1503092bd18419de6d851541.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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2021-12-21更新
|
1485次组卷
|
6卷引用:河北省唐县第一中学2021-2022学年高二下学期3月开学考试数学试题
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