1 . 关于函数
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d22742c0fddbc20b58ccbf33d1e80a.png)
A.最小正周期是![]() | B.图象关于直线![]() |
C.图象关于点![]() | D.在区间![]() |
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2024-02-04更新
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4卷引用:甘肃省武威市古浪县第一中学2023-2024学年高一上学期期末考试数学试题
2 . 已知数列
各项均为正数,其前n项和
满足
.给出下列四个结论,其中所有正确结论的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d14e4a1c2eb301312eaae594040d0b52.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
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2卷引用:甘肃省武威市第八中学2023-2024学年高二上学期期末数学试题
3 . 已知
为椭圆
的右焦点,离心率为
.
(1)求
的方程;
(2)若
是平面上的动点,直线
不与坐标轴垂直,从下面两个条件中选择一个,证明:直线
经过定点.
①
为椭圆
上两个动点,且
;
②
为椭圆
上两个动点,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b406c5e06b7790b2e481a8ce3f5e33c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3551efb72b95def8f1877b5c38d71192.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a877428408d09ac0112f833e54a8e34a.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/282298a866831ea4a8cdf96ae28c0aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a877428408d09ac0112f833e54a8e34a.png)
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4 . 已知角
满足
,
,且
,则角
属于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e326c048107adfb823fe5e97dce84d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1833c035f281557685507ee8d2ae6f21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c2d2bbbd010bfa0b31e56390eef908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a16d92d3ccdf0ecfaa43eb8ed62ae5a4.png)
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
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名校
5 . 设椭圆
的右焦点为F,直线
与椭圆交于A,B两点,则下述结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def6b1847098dd39d653c77786cb4eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad6b3c239efecfac46923ce262f85bc6.png)
A.![]() | B.![]() |
C.当![]() ![]() | D.当![]() ![]() ![]() |
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2卷引用:甘肃省武威市第八中学2023-2024学年高二上学期期末数学试题
解题方法
6 . 设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
是数列
的前
项和,且
.
(1)证明:数列
是等差数列;
(2)求数列
的前
项和
;
(3)设
,数列
的前
项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839032ba422517f44b086963529e3d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac289eb6e726f0d0119a67a43616b215.png)
(1)证明:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae17135935407a64d92c9f8871eba78.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69184f50e70f4dfc297879ee39b54711.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abb6cc8dcf66297f98152a0b06d7e271.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87bd7d18f67e90a7c37fad4252e43c9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37f5ae4065d118d28a54f6ce02d6f4c.png)
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7 . 已知
是递增的等差数列,
是方程
的根.
(1)求
的通项公式;
(2)求数列
的前
项和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbd8e16b5cce392a12326fa2f3ee9acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de4c5aa18d74d35ca4e8592122746b7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28bdbde4eb7e4d4033bb9053b6c806e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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解题方法
8 . 奇函数
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1580872d29c1b713366ad6fd40c13f6.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3934ea430c5909a37abf8eb6f1b69e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1580872d29c1b713366ad6fd40c13f6.png)
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9 . 已知向量
满足
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914882c88989907cb26519f714723234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3c6bd21d9c27a68b970f446f04d6df.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 已知直线
(
为常数)与圆
交于点
,当
变化时,若
的最小值为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b256345d7109e081b7c895591e995d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb40dae2b0f4048d3fabff25e6cbe443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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2024-01-09更新
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2卷引用:甘肃省武威市第八中学2023-2024学年高二上学期期末数学试题