1 . 已知向量
,
.
(1)若
的夹角为锐角,求实数
的取值范围;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b4165b30eeea4d7b76a90d9989b11d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50e07e1c40bc6572fa9b0cc70da8a1b2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6976a27fed93809d8428fbab345f9414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e8681ea75c4398864e1ded99e1ec48.png)
您最近一年使用:0次
解题方法
2 . 已知函数
.
(1)若函数
,且当
时,
有零点,求实数
的取值范围;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34c5135167887fd1092057f7d7c2c9d5.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd1017814e9883c21b17e43703a7272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e1e3f55d710b23038928e1cde6e0548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e6bba4fae5317676a006246590539f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ff0e5c78c04beea4e773185195da30.png)
您最近一年使用:0次
解题方法
3 . 已知函数
.
在区间
上的图象;
(2)求函数
在区间
上的零点个数;
(3)将
的图象先向右平移
个单位长度,再将所有点的横坐标缩短为原来的
(纵坐标不变),得到函数
的图象,若关于
的方程
在
时有2个不等实根
,求实数
的取值范围和
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69dc53cd7d3d3edad18ff6b696cef407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c195698ac387fe53b3b1e0248a1fcc92.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43df1e101157674bde5da4e4a292bdcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c195698ac387fe53b3b1e0248a1fcc92.png)
(3)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91a09da1efd0f599dd4682f2284822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed33229aea12f44f7dd64fd14882b7ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eebb6b1d1bda9fc97bd8860513dbccc2.png)
您最近一年使用:0次
4 . 如图,一个水轮的半径为4m,水轮圆心O距离水面2m,已知水轮每分钟转动5圈,如果当水轮上点P从水中浮现时(图中点
)开始计算时间.
(2)点P第一次到达最高点大约需要多少时间?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
(2)点P第一次到达最高点大约需要多少时间?
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解题方法
5 . 已知
,且
有意义.
(1)试判断角
所在的象限;
(2)若角
的终边与单位圆相交于点
,求
的值及
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/491be8aceb6c96bb9f57c59cd619ba26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1515c37f6804c98f458d24fd7a62e18d.png)
(1)试判断角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)若角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d7303c82838d37089b8f0def0067d9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
您最近一年使用:0次
名校
6 . 已知函数
.
(1)求函数
在
上的单调递减区间;
(2)解关于x的不等式
;
(3)若
在区间
上恰有两个零点
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f36fb22cff89eea45f75db4af221615.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/137d6a66a015ddd2a8076f35ed191927.png)
(2)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/256f3981024e53f373a80aad40e994ae.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39024373581870c0c410ee4f80eb8c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e88e93310e85e58313d4ec99a2cb0553.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dae74c724114bfeff024dd7b79f5edc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d991545fc440be1f3694228b02a894b8.png)
您最近一年使用:0次
名校
7 . 已知函数
.
(1)求
的单调递减区间;
(2)将
的图象上的各点纵坐标保持不变,横坐标伸长到原来的2倍,再向右平移
个单位得到
的图象,当
时,方程
有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c161cae5c5a032b1552433744b48018.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2faa63899873813748f6a28b8a92e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1261058bbe25e4c224e3e088059b185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f0434793bc05c13ed1a0c63ce15de1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024-03-03更新
|
1649次组卷
|
4卷引用:安徽省蚌埠市固镇县毛坦厂实验中学联考2023-2024学年高一上学期1月期末教学质量抽测数学试题
名校
解题方法
8 . 已知
.
(1)求
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68aeaec7bb55eeb0b05b9eb47160c988.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3fe9f2f9aa8d0d24bd528b7fce71b80.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12985501466d636d234ee4cdea749df8.png)
您最近一年使用:0次
2024-01-29更新
|
782次组卷
|
3卷引用:安徽省蚌埠市第二中学2023-2024学年高二下学期3月月巩固检测数学试题
名校
9 . 已知函数
的图象如图所示.
(1)写出函数
的关系式;
(2)已知
,
.若
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/5bed88e1-1f8a-4a1e-8a74-bbf88d7e48a7.png?resizew=212)
(1)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a5c248d456304d3eb7c18a26aad7e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdcb656e11b0173bff5dc7eb56aa1f18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb605828ee0ea01e8763ddeaacb1b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
10 . 如图,在
中,
分别是边
上的动点.
(1)证明:
;
(2)当
分别是边
的中点时,用
表示
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/927456b0989846a2f1573844bbaa2105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0e08a39c6619123557148d195abfbe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/08c9a5c1-abf5-44de-bfcf-c9d5ad75f78a.png?resizew=195)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a289e14db6a5ec8bbbbb54c65411575c.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d688fd11e6bfe3a880c4952a272442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cca04b2a2b61d62a809776670a60c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0be656083580a03c6481fb75881b84f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef2723673c90347f6dd58346278c7fa.png)
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