1 . 如图,在平行六面体
中,
,
,
,
,设
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/50a9a3de-63cc-47cc-ae84-144162a6fd74.png?resizew=172)
(1)用向量
表示
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9091e7a2ff0d2ece4c4e0eff9d76f679.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e6db510fc4e808462fcd30d93a22e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7cfd839b35f8db9d0f5b588679c6b3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e984585ddf28c039219afcebf229de7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a5ad65006ab94c402084227f4675b57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/50a9a3de-63cc-47cc-ae84-144162a6fd74.png?resizew=172)
(1)用向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e12e95f703ad30ab9a3d38376830989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08b344a0ebe520f4147702257aa276b.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da2d1ab93ce2ae18136f1597aacfbca2.png)
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2 . 传说古希腊毕达哥拉斯学派的数学家用沙粒或小石子来研究数.他们根据沙粒或小石头所排列的形状把数分成许多类,如下图的1,3,6,10称为三角形数 ,1,4,9,16称为正方形数,则下列各数既是三角形数又是正方形数的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/846be018-5af4-4b65-b6e9-60c03076c7a5.png?resizew=237)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/846be018-5af4-4b65-b6e9-60c03076c7a5.png?resizew=237)
A.55 | B.49 | C.36 | D.28 |
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3 . 已知椭圆
的左、右焦点分别为
,离心率为
,点P在椭圆C上,直线
与直线
交于点Q,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45cc81cfaccc00aa4b7139de5a35a102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a84b84d04d6b0328d1dbb890150f0073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/983f43cbde7233a6525bd8406fdd1835.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 已知圆
和圆
外离,则整数m的一个取值可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f1feb88df28b8532ce5002cae0991e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49f5e4b2566d9d6836ad04c5031c09df.png)
A.4 | B.5 | C.6 | D.7 |
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5 . 已知点P为圆
上一动点,
,
,则点P到直线AB的距离的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4ceb6f28cb3e24f45a00f44ad1ba14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29610a3415c1e795d35979a5a9ff69f3.png)
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解题方法
6 . 若双曲线的渐近线方程为
,则该双曲线的方程可以是______ .(只需填写满足条件的一个方程)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10273b05ad8210d8db07639c4d149fd.png)
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7 . 已知正项等比数列
的前n项和为
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7999465d0e871febde66296a0cbf058c.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba371be8f97532b96b871ec5effad84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/097899de76881cab57ae4f6409662061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7999465d0e871febde66296a0cbf058c.png)
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解题方法
8 . 已知数列
满足
,
.
(1)求证:数列
为等差数列;
(2)设数列
前n项和为
,且
对任意的
恒成立,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23dccc60738f39c78238b0670e4f319b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea8d0e50065114b05ef2dc1ea1129cf.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cf1da18d91f7c98086553d157d1a87.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa10453ad5158632f161e3e805d34778.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
您最近一年使用:0次
2024-02-14更新
|
613次组卷
|
2卷引用:浙江省温州市2023-2024学年高二上学期期末教学质量统一检测数学试题(A)
解题方法
9 . 已知圆锥有一个内接圆柱,当圆柱的侧面积最大时,圆柱与圆锥的高之比为( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-02-14更新
|
302次组卷
|
2卷引用:浙江省温州市2023-2024学年高二上学期期末教学质量统一检测数学试题(A)
10 . 两个正方形ABCD,ABEF的边长都是1,且它们所在的平面互相垂直,M和N分别是对角线AC和BF上的动点,则MN的最小值为______ .
您最近一年使用:0次
2024-02-14更新
|
161次组卷
|
2卷引用:浙江省温州市2023-2024学年高二上学期期末教学质量统一检测数学试题(A)