1 . 函数
(
且
)的图象过定点_________ .直线
的倾斜角为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d982f5a0c011f75ecbace7ae1cae7d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b22a292c25bf81dff2bb6d211b492aa4.png)
您最近一年使用:0次
2 . 一片森林原面积为
,计划从某年开始,每年砍伐一些树林,且每年砍伐面积与上一年剩余面积的百分比相等.并计划砍伐到原面积的一半时,所用时间是10年.为保护生态环境,森林面积至少要保留原面积的
.已知到今年为止,森林剩余面积为原面积的
.
(1)求每年砍伐面积与上一年剩余面积的百分比;
(2)到今年为止,该森林已砍伐了多少年?
(3)为保护生态环境,今后最多还能砍伐多少年?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求每年砍伐面积与上一年剩余面积的百分比;
(2)到今年为止,该森林已砍伐了多少年?
(3)为保护生态环境,今后最多还能砍伐多少年?
您最近一年使用:0次
解题方法
3 . 某几何体的三视图如图所示,网格的数量单位为1cm,则这个几何体的体积是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/a5da64b2-127a-4673-8cef-8ad5ac33627c.png?resizew=171)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/a5da64b2-127a-4673-8cef-8ad5ac33627c.png?resizew=171)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
4 . 已知正方体
,求证
(1)
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf9628142422a4884bd59538da6d312.png)
(2)求平面
与平面
所成夹角的余弦值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d26d8a9d64ad3c8cba28840b41ed7837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf9628142422a4884bd59538da6d312.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4294ffdba16ae69fd03b13959d682aba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c237015ab2c034ca97cbb3928f7f9b.png)
您最近一年使用:0次
5 . 已知抛物线
,O为原点,F为抛物线C的焦点,点A,B为抛物线两点,满足
,过原点O作
交AB于点D,当点D的坐标为
,则
的值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cee097d4fe948c3d4f1b5c28b24adf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80991c1f0c963104740e50cfff6f29a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c56f5df84331896242be97d7efe670ec.png)
您最近一年使用:0次
解题方法
6 . 如图所示的流程图,若输入x的值为
,则c的输出的结果为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a94acdfb41489d5694b5a64b9e99754.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/11/43ed6f87-9c9d-4ca2-95bf-b5502f0ca545.png?resizew=138)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
解题方法
7 . 若变量
满足
,则
的最小值是__
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3736d9de8391a3e6727ffefd906209.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce0cbb825b4f50960efa0afa87a0e17.png)
您最近一年使用:0次
名校
解题方法
8 . 已知
是锐角三角形
的垂心,过
作平面
的垂线,在垂线上取一点
,使
,求证:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6df9b574c6b6a4c878bf425d4fa31d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45fbffb9e2c7fa7c5006cde8da0cabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
9 . 计算:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9037ed42af188b8195a6cdcddd69afb8.png)
您最近一年使用:0次
名校
解题方法
10 . 已知
是抛物线
的焦点,过点
作两条互相垂直的直线
、
,
与
相交于
,
两点,
与
相交于
,
两点,
为
,
中点,
为
,
中点,直线
为抛物线
的准线,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c1ba86ffc6e5542b62319848c14acaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.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/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.以![]() ![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
2024-01-08更新
|
624次组卷
|
3卷引用:黑龙江省鸡西市第一中学校2024届高三上学期期末数学试题