解题方法
1 . 我们通常称离心率为
的椭圆为“黄金椭圆”,称离心率为
的双曲线为“黄金双曲线”,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029d393bb07b7140905b85f550519de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5569c257d122b7837b636d732033531.png)
A.正![]() ![]() ![]() ![]() ![]() |
B.已知![]() ![]() ![]() |
C.“黄金椭圆”上存在一点,该点与两焦点的连线互相垂直 |
D.“黄金双曲线”的实半轴长,一个焦点到一条渐近线的距离,半焦距能构成等比数列 |
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解题方法
2 . 点
,点
在
轴上,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c6f80da33b40c4067c0c1f3a8fa1bd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3979f27823cdcba516dfa885d8afe19d.png)
A.![]() | B.5 | C.4 | D.![]() |
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名校
解题方法
3 . 已知函数
是
上的增函数,则实数k的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b642d488b8d137267d7a7423c43c243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a19bbab2270fc8e694527e801556cf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-02-11更新
|
460次组卷
|
2卷引用:贵州省六盘水市2022-2023学年高一上学期期末教学质量监测数学试题
4 . 如图,
的半径等于 2,弦
平行于 x 轴,将劣弧
沿弦
对称,恰好经过原点
,此时直线
与这两段弧有 4 个交点,则
的取值可能是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/8b9035cf-46c9-4939-b9e4-4fca4cfd1f2d.png?resizew=190)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b74381f68eb1e33d412a7a3d62313f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/8b9035cf-46c9-4939-b9e4-4fca4cfd1f2d.png?resizew=190)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 在直三棱柱
中,若
则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/289e243a-b1c0-450f-a110-3fc2e0e3d13f.png?resizew=128)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8497d0f2562f2112e09a9f40978ec319.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9ddcb8489c07c51a0fa12fca39aeec.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/289e243a-b1c0-450f-a110-3fc2e0e3d13f.png?resizew=128)
A.![]() | B.![]() |
C.![]() | D.![]() |
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6 . 若
构成空间的一个基底,则下列向量不共面的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed18a92338c7578c18a5ba3a2ae1ed4.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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7 . 设
,空间向量
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64541d7f445079207b6f671adc7d662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ccc509f24e35e08168ce6d615c4ff00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
A.![]() | B.1 | C.![]() | D.3 |
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解题方法
8 . 已知
为等差数列
的前
项和,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/814be4b5e0d018e3dab75f1e76232b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae9ad4e59d7081cf19021423a984bc29.png)
A.76 | B.72 | C.36 | D.32 |
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9 . 圆
与圆
相交于
两点,则线段
的垂直平分线的方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7f98a1dfd896d838f929b7b5e14f6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb78775d0d34bdaa4943c3c04c855f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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10 . 十六世纪中叶,英国数学家雷科德在《砺智石》一书中首先把“
”作为等号使用,后来英国数学家哈利奥特首次使用“
”和“
”符号,并逐渐被数学界接受,不等号的引入对不等式的发展影响深远.如糖水在日常生活中经常见到,可以说大部分人都喝过糖水.如果
克糖水中含有
克糖(
),再添加
克糖(
)(假设全部溶解),糖水变甜了,将这一事实表示为不等式正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392cdb9d30684cce244bef94b8d861b9.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/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8610232c77741a37463feba1a66c94.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-01-25更新
|
94次组卷
|
2卷引用:贵州省六盘水市2022-2023学年高一上学期期末教学质量监测数学试题