1 . 下列说法中正确的是( )
A.圆心角为1弧度的扇形的弧长都相等 |
B.![]() |
C.若![]() ![]() ![]() |
D.把![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2020-06-18更新
|
252次组卷
|
2卷引用:山东省菏泽市东明县第一中学2018-2019学年高一下学期期中数学试题
2 . 已知函数
,其中
.
(1)若方程
在
上至少存在8个解,求
的取值范围;
(2)若函数
在
上为增函数,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f205ba9f510efe05b453d2d20cc7fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e04b2fa62cb0e22d7268848987abc0c4.png)
(1)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8085e36d6cb14b47a65e70024d41a7ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53496ae2397150370142b5195a1a39c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/221979676825028a74680f56f69c98be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
您最近一年使用:0次
名校
解题方法
3 . 已知向量
,
,
,
,
.
(1)求
的值;
(2)若
,
均为锐角,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f349fbda51d442c30ed66840afed1403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a3b75a35e5df9ad5d2bdeeb0d511c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5cf66347e23bd95f731eb3e06aa5639.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146e245942ec764a700aed302723ceba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/176486177330fadba5afe83a882813f1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0a525518b71d33d91ef78e1de5f6c9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d84cc212fe11c531d315f372968b43a.png)
您最近一年使用:0次
2020-03-03更新
|
459次组卷
|
3卷引用:山东省菏泽市东明县第一中学2018-2019学年高一下学期期中数学试题
名校
解题方法
4 . 已知函数
.
(1)求函数
的最小正周期;
(2)将函数
的图象向右平移
个单位,再将得到的图象上各点的纵坐标不变,横坐标伸长为原来的2倍,得到函数
的图象,求
在
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed96ee227409fe47626a58aa1eee6caf.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc6e69ad1a27916fb5c3d5901ded134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a4808a85a46466dade486da989961a.png)
您最近一年使用:0次
2020-03-03更新
|
586次组卷
|
3卷引用:山东省菏泽市东明县第一中学2018-2019学年高一下学期期中数学试题
名校
5 . 在平面直角坐标系
中,已知任意角
以x轴正半轴为始边,终边经过点
,设
(
),定义
,给出四个下列结论:
①方程
无解;
②该函数图象的一个对称中心是
;
③该函数的图象关于y轴对称;
④该函数在区间是
上为增函数.
其中不正确的结论的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc26262f7a1603369462c7c2f2197a42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa23e30c71f3e85fdfe5f5b746cf54ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ba6b6aa6c3f9faba6b03bc193a6e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cb7fdc7724d2415b03e4cec7d397392.png)
①方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a60438803f684a5a0f731bf8f184f9.png)
②该函数图象的一个对称中心是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98efea05255ed7f0cfc3ac7ce2c86fec.png)
③该函数的图象关于y轴对称;
④该函数在区间是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd585e05cb7d0b6131707ff89425c6cb.png)
其中不正确的结论的序号是
您最近一年使用:0次
2020-03-03更新
|
472次组卷
|
2卷引用:山东省菏泽市东明县第一中学2018-2019学年高一下学期期中数学试题
名校
6 . 已知向量
,
,设函数
.
(1)求函数
的最大值;
(2)已知在锐角
中,角
,
,
所对的边分别是
,
,
,且满足
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00991571823cead3a299563de753261f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcc99ad940d4cbb70c78057a11e8ff3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae9f908aabcd9d9c46a0ecdfd1d6c12.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知在锐角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0dff5692632c1f3675af7399e0f2dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca0e756b9ba2deaaffdb0520c61847e.png)
您最近一年使用:0次
2020-03-02更新
|
834次组卷
|
4卷引用:四川省蓉城名校联盟2018-2019学年高一下学期期中联考文数试题
解题方法
7 . 已知函数
.
(1)求
的最小正周期;
(2)在
中,角
,
,
所对的边分别是
,
,
,若
,
,
,求边
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc709e8934cdfb0f5266c45c734cee17.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ee61e64fece28f3c7b274edbc82bd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
您最近一年使用:0次