解题方法
1 . 已知函数在
上是奇函数,当
时,
,则
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2024-03-21更新
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2卷引用:北京市顺义区2024届高三上学期第一次统练数学试题
名校
2 . 如图,函数
的图象为折线
,函数
是定义域为R的奇函数,满足
,且当
时,
,给出下列四个结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/23/f5a2c28c-0b50-4cd2-b91a-44675e5da6ab.png?resizew=164)
①
;②函数
在
内有且仅有3个零点;③
;④不等式
的解集
.其中正确结论的序号是_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf468f5132e14ee1d8cc766808b11af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ab28aaed1369b8246303597eb5bc183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/123bf3451e1cd6900508c4e3560a81f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea730e263c7b433f932b921bf7de679.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/23/f5a2c28c-0b50-4cd2-b91a-44675e5da6ab.png?resizew=164)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a46e5402e7bdf58b11e9610ba48a8c19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0ba9bba605f7917cf70a8240a6431d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a6fb75296a4ee8461c4793383c2cb9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d26ff362d6ad9d6861fc8798fab6876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecf707e3aa4a69db3b1a05a4dc30e20.png)
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2024-02-11更新
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2卷引用:北京市顺义区2023-2024学年高一上学期期末质量监测数学试卷
3 . 已知
,若存在
,使
,则正整数
的一个取值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/798af57938408f6e1fa1493c05242aa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/935f18a5ed65b476a55e2aefabc8dd79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/759a215e15a62a75ee49781cdc4786cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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4 . 已知数列
满足
,给出下列四个结论:
①若
,则数列
中有无穷多项等于
;
②若
,则对任意
,有
;
③若
,则存在
,当
时,有
;
④若
,则对任意
,有
;
其中,所有正确结论的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eec490f5042b5fa1806d51117f46e46.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49d2b2d4f703cbaa738a7cdfc7129c17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72764b141127839fbce1499c9d7983c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2798e1dcab1f7f0fe3b8a94b3cd6a88.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390636a89883bd64bf8da9bf8654aff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/985358efe032b74b1121b4734f2bf19a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84c29bfcb2e31e3c21967ede660eaa0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3fc50dccd99eb29a7a248d1ecb8586.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8da736e8729953f02876f549397d896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd9a8dafcb89bf1dd488037a410cd90c.png)
其中,所有正确结论的序号是
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5 . 在
的展开式中,
的系数为__________ .(用数字作答)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d74cda2b20c3a10b27867301a97b8831.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2024-01-31更新
|
420次组卷
|
2卷引用:北京市顺义区2024届高三上学期第一次统练数学试题
解题方法
6 . 在
中,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff368d244114153f5ccb68022bb2c2d.png)
__________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69aac8b6b16676c948ca2862a371186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff368d244114153f5ccb68022bb2c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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解题方法
7 . 已知圆C:
,若直线
与圆C有两个不同的交点,写出符合题意的一个实数k的值______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca2415dee662897b676734cfc768d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231896d2386c924306fce5ccf9f9e8a7.png)
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8 . 在数列
中,若
,(
,
,p为常数),则称
为“等方差数列”,给出以下四个结论:①
不是等方差数列;②若
是等方差数列,则
(
,k为常数)是等差数列;③若
是等方差数列,则
(
,k、l为常数)也是等方差数列;④若
既是等方差数列,又是等差数列,则该数列也一定是等比数列.其中所有正确结论的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44818d415cf4e4af51151193e204bdd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf501ee8c756d096461dd877a053ba34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79dd8bf6e61b17c2b37f219d973edd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf5776ec7059c208daf01ca48a34915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b1f06785893e8aa613b07156e52db8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d99e3e56b14af79791715587e9ebe801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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解题方法
9 . 探照灯、汽车灯等很多灯具的反光镜是抛物面(其纵断面是抛物线的一部分),正是利用了抛物线的光学性质:由其焦点射出的光线经抛物线反射之后沿对称轴方向射出.根据光路可逆图,在平面直角坐标系中,抛物线C:
,一条光线经过点
,与x轴平行射到抛物线C上,经过两次反射后经过点
射出,则光线从点M到点N经过的总路程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4a3b8605f331abb21d9678fc8dfd1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4410a44bd6b0fcd042ce1e68764f6a5.png)
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2024-01-26更新
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2卷引用:北京市顺义区2023-2024学年高二上学期期末质量检测数学试题
10 . 已知等差数列
的首项为
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa37e5661af68b263a3ed9030d4e9003.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1549723d901eeb2cf966e322f404a5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e54f5b320f3aed22ab9cbaa117c71f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa37e5661af68b263a3ed9030d4e9003.png)
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