![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f53f81bca037a4383c1fab122a3cd3d.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() ![]() |
【知识点】 求已知函数的极值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33770cd4511e0f50f2d959ffd913e97f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/a879d709-5752-47fc-8ec0-55158f74184f.png?resizew=180)
A.无极大值点、有四个极小值点 |
B.有一个极大值点、两个极小值点 |
C.有两个极大值点、两个极小值点 |
D.有四个极大值点、无极小值点 |
【知识点】 函数(导函数)图象与极值的关系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fccb7b8e18191aad5d3c3012e6713ced.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 求已知函数的极值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab565b4fb9428538eb1187326e8156d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
【知识点】 根据极值点求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60b5389c914ec243431417f60de73430.png)
A.0 | B.![]() | C.![]() | D.![]() |
【知识点】 求已知函数的极值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28b4e5f0c6fe496bfefab1f7be3bd561.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/82e7032f-2cc5-4ef6-9e54-401f72ed9d02.png?resizew=245)
A.函数![]() |
B.函数![]() ![]() |
C.函数![]() ![]() |
D.当![]() ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc6841957d3c0739413847a34b47b500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf94b069e1b7a256b5822cbf46a5ab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc6841957d3c0739413847a34b47b500.png)
![](https://img.xkw.com/dksih/QBM/2020/5/30/2474099047514112/2475133535748096/STEM/a8b5886502d04ceaae092434f18b3d98.png?resizew=250)
A.在![]() | B.在![]() |
C.在![]() | D.在![]() |
【知识点】 函数与导函数图象之间的关系 函数(导函数)图象与极值的关系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7407cc453aaac49d69a76791eacd16c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354c3a283b2b21cc8ac33995aac20a5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
A.-4,4 | B.4,-4 | C.4,4 | D.-4,-4 |
【知识点】 根据极值求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f53f81bca037a4383c1fab122a3cd3d.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9c81965854dbe52a513241f196edf2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9648f06cf8e7a87e6dd85d71026c0f.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6c4be360abb4f6bbdab9711083a0b69.png)
A.0个 | B.1个 | C.2个 | D.3个 |
【知识点】 利用导数求函数的单调区间(不含参) 求已知函数的极值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a5ba29fcad847a7da8003fe15c818a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4821aef44a65d7d82cea330fe43aaa46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.有极大值,无极小值 | B.有极小值,无极大值 |
C.既有极大值又有极小值 | D.既无极大值也无极小值 |
【知识点】 函数极值的辨析
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c27e577d3cadec166bd545dcaa2ac5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 求已知函数的极值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e328c20ada7164298ca70ceb5d5194ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb2f87452a6a5fe9dd73766b16d66bf.png)
A.-2 | B.-7 | C.-2或-7 | D.2或7 |
【知识点】 根据极值求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12c934e782fab82d302a90a7999a1dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 根据极值求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/536871cebf3555cb9a3c1b08494d51f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 根据极值点求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb377d1fef92157a3458ed0dbed4659.png)
①函数恒有两个零点且两个零点之积为-1;
②函数恒有两个极值点且两个极值点之积为-1;
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
其中正确判断的个数有
A.0个 | B.1个 | C.![]() | D.![]() |
【知识点】 求函数零点或方程根的个数 函数极值点的辨析 根据极值点求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87772c3abd2ebf76cd72ed4d6e7ce32d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 根据极值求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/799475f60fcf10742cefc41b46bea742.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79fe3414b32bbd1190b41ed8307f905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d80629f8329ae2839401d98396643de.png)
【知识点】 函数极值点的辨析
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef2f907c2aa5436b11c6a7a5f0d067f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c6b6a11760d0724b0b60e55970e229.png)
【知识点】 求曲线切线的斜率(倾斜角) 根据极值求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c39c16d3c056a9627afbc9501e3f8b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da322ac8867e8a47c6588601078abf18.png)
【知识点】 函数与导函数图象之间的关系 函数(导函数)图象与极值的关系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbd2a4fd3bd595a15539b593f3136fcc.png)
【知识点】 求已知函数的极值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6ebc971c3264f6b61ea321e17aba2e7.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
【知识点】 求在曲线上一点处的切线方程(斜率) 求已知函数的极值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求函数y=f(x)在点(0,f(0))处的切线方程;
(2)当a>1时,求函数y=f(x)的单调区间和极值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c929ec662329f688d4986bc76ada9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)求出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
【知识点】 利用导数求函数的单调区间(不含参) 根据极值求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c1e6d74adff7f318dc7dfb3a122bca.png)
(I)当a=2时,求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c959ab293ef3ecbba70b635da3e2a8.png)
(II)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c140c537245794eb60e3cd0c4853ead.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)