名校
解题方法
1 . 已知函数
.
(1)若对任意的
,
恒成立,求实数
的取值范围;
(2)证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561968fcda31ec33535e22dcbcc5fa2c.png)
(1)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66d61d5f66d68b4c4a2a25fd7103621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ee947063b5f177800ac17a5b1ccc70c.png)
您最近一年使用:0次
2022-12-11更新
|
406次组卷
|
2卷引用:湖南省常德市桃源县第一中学2022-2023学年高三上学期期中数学试题
2 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7967d48ef1197d7a86369634fcd3a50b.png)
(1)如果
恒成立,求
的取值范围
(2)若
使得
成立,求
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7967d48ef1197d7a86369634fcd3a50b.png)
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8249764498ced93e36f9be16330f4585.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cc9b5dbd2e1adadb5d6bf1ddc07b6d5.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5969df1bf0bbcc9bd94cc7f2749c40bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cc9b5dbd2e1adadb5d6bf1ddc07b6d5.png)
您最近一年使用:0次
解题方法
3 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/238e82bea09d337ea39b8d4d3d5e54f7.png)
(1)将函数
写成分段函数形式,并作出函数
的简图
(2)如果方程
有四个不同的实根,求实数
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/238e82bea09d337ea39b8d4d3d5e54f7.png)
(1)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)如果方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3986d8d3b7e1cd8f917cda2559cb37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
您最近一年使用:0次
4 . 已知集合
,
或
.
(1)求
;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20eeec17a429f84e25387cfe309bd0a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b00e00aeafa5bccd8883fdb9b96355a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21cd8cba53d222107e93146fd2562a1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da331a8c58b97333fcf642c92f089e0c.png)
您最近一年使用:0次
5 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d010f8b9f28d0994a4bcdce2990faa9e.png)
(1)若不等式
的解集为
或
,求
的值;
(2)若
都有
,且
,求
的表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d010f8b9f28d0994a4bcdce2990faa9e.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1095b8b474149846c85dd49c1566492e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0075c9137e965d70d4127febd9121858.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a3cd8f426be23c47f101961c8ebeb57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3751ffb4201cedabb5f72927e55805f7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545931b962cf570712d04888b57093f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87cd4403487962c38c8707ba3ab3fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
6 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b38785c1d1af672fcf26ca203ed497e.png)
(1)求函数
的定义域
(2)求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b38785c1d1af672fcf26ca203ed497e.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348c82c55429f37d328c65953f2ddc0d.png)
您最近一年使用:0次
名校
解题方法
7 . 已知函数
在
处的切线的斜率为1.
(1)求
的值及
的最大值.
(2)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0ef5a0f806510d2d74492a44dbc721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be613fff0421d9be9e8bb5eb8b07c40f.png)
(3)若
,若
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f43cd787e8daf9196d47a0247c75529f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c98a7f3a8bf384b1dfc1d34aebd46d2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0ef5a0f806510d2d74492a44dbc721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be613fff0421d9be9e8bb5eb8b07c40f.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd790207900cc4fdc61de7ac3123cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2022-12-02更新
|
288次组卷
|
2卷引用:湖南省衡阳市第一中学2021-2022学年高二期中数学试题
名校
解题方法
8 . 在
中,角
所对的边分别为
,c.且
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/937f8ce71c014a0d273a13060b84f262.png)
(1)求
角大小
(2)若
求函数
的最小正周期和单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e30c0a5c92f50dce1f7624709950ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7fa79a550591eb9e1bd07bced3a08fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/937f8ce71c014a0d273a13060b84f262.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10769831d0a6e78c324791a9cbb30c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
名校
9 . 在
中,有
.
(1)求角
的大小;
(2)若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460242247cb11ce10053f3862bc1d20e.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d72516748889a6f52aefb3d40e674cbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2022-12-01更新
|
3824次组卷
|
9卷引用:湖南省邵阳市武冈市2022-2023学年高二上学期期中数学试题
湖南省邵阳市武冈市2022-2023学年高二上学期期中数学试题新疆维吾尔自治区喀什地区巴楚县第一中学2022-2023学年高一下学期期中数学试题陕西省西安市周至县第六中学2024届高三上学期期中数学试题(已下线)第13讲 余弦定理(已下线)2.6.1余弦定理与正弦定理-余弦定理(第1课时)(已下线)11.1 余弦定理黑龙江省哈尔滨市顺迈高级中学2022-2023学年高一下学期期末数学试题吉林省辽源市田家炳高级中学校2022-2023学年高一下学期6月月考数学试题新疆生产建设兵团第三师图木舒克市第一中学2022-2023学年高一下学期4月月考数学试题
10 . 如图,设边长为2的正方形
的中心为O,过点O作平面
的垂线
,
,E为
的中点,求
与
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19053584897fb300cfce8407b6483821.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4043779cd0f8bc1217dbd0a68e9f5f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19053584897fb300cfce8407b6483821.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90448aaee87bb3facc8334cdf0b3b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0735144f6e24b6b32028ff14c17c1cec.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/6a04ae9e-c596-4b61-b97e-6f675e824957.png?resizew=182)
您最近一年使用:0次