名校
解题方法
1 . 将正三角形(1)的每条边三等分,并以中间的那一条线段为底边向外作正三角形,然后去掉底边,得到图(2);将图(2)的每条边三等分,并以中间的那一条线段为底边向外作正三角形,然后去掉底边,得到图(3);如此类推,将图(
)的每条边三等分,并以中间的那一条线段为底边向外作三角形,然后去掉底边,得到图
.上述作图过程不断的进行下去,得到的曲线就是美丽的雪花曲线.若图(1)中正三角形的边长为1,则图(
)的周长为__________ ,图(
)的面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aceb113626093e0e431f30fa45c2c444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/cc4bbbc0-a228-404d-981c-94e842b746b2.png?resizew=216)
您最近一年使用:0次
2021-08-09更新
|
1073次组卷
|
6卷引用:广东省惠州市2022届高三上学期第三次调研数学试题
2022高一·全国·专题练习
解题方法
2 . 已知函数
,各项均不相等的数列
满足
,
,数列
和
的前
项和分别为
和
,给出下列两个命题:
①若
,则
;
②存在等差数列
,使得
成立.关于上述两个命题,
以上说法正确的是______ .(填写序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a89aebeb8393a39f62d34c89fdc5654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/811308edf40d7e10059f5652f0e65420.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292b7800ba829f3f458cd6c23edf68a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66efb7bb8ed08d5b8b1d51e7d4dddb83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cf3107b2fbe839c67499bf58175a117.png)
②存在等差数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95603baa4634fa1ef7fe744ff5180586.png)
以上说法正确的是
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解题方法
3 . 下列关于函数
的判断正确的是___________ (填写所有正确的序号).
①
的解集是
;②
是极小值,
是极大值;③
没有最小值,有最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eec63a39bdb95603fb86a07889a43b7.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e3675b91a7bdeed64e0d5b7aab2e617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fe45ecd5d507adc2e7ffc1b1755856.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb71ad742b421a7ba62d8c1923d33358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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解题方法
4 . 设P为多面体M的一个顶点,定义多面体M在点P处的离散曲率为
,其中
为多面体M的所有与点P相邻的顶点,且平面
,平面
,…,平面
和平面
为多面体M的所有以P为公共点的面.已知在直四棱柱
中,底面ABCD为菱形,
.
①直四棱柱
在其各顶点处的离散曲率都相等;
②若
,则直四棱柱
在顶点A处的离散曲率为
;
③若
,则直四棱柱
在顶点A处的离散曲率为
;
④若四面体
在点
处的离散曲率为
,则
平面
.
上述说法正确的有______ (填写序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/275fc582ec511e4c5a2a98f69da0cdff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e0c2c9eaed87ff47d9637e00c04c3af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183f3fdb3204864ff2f60c8c1dac2f2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db59863ffec5fa450ab8342fd8675c2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d7f18c3c9dae7e6d4f2e96281289f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f733e19f18ab01a3c022331805ed58a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeed487430a5b8a330f2d0c52166521a.png)
①直四棱柱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de966c316db1013defc56372fcf814e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5fc4ad65b723b6a8da4c8dac154e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
④若四面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7bdd603c88ddd439925239ac74d5461.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cc0f4e88a98b2b25320e4bed691342b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d1d2e0f281222a5f289ea4008370aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
上述说法正确的有
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5 . (1)若数列
的通项公式为
,则该数列中的最小项的值为__________ .
(2)若
的展开式中含有常数项,则n的最小值等于__________ .
(3)如图所示的数阵中,用
表示第m行的第n个数,则以此规律
为__________ .
(4)
的内角A、B、C所对的边分别为a、b、c.已知
,且
,有下列结论:①
;②
;③
,
时,
的面积为
;④当
时,
为钝角三角形.其中正确的是__________
填写所有正确结论的编号
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22363774130b5db04c49b36bc4d58001.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bbdb3fc9614438947c7f1537ec64765.png)
(3)如图所示的数阵中,用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a66c5f00b5b38a2d052354b5611970e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a9aa3e38f912969450d2a1fe5ffcae.png)
![](https://img.xkw.com/dksih/QBM/2022/3/8/2931802799407104/2938048186130432/STEM/b7d18d9015bb45d3a6959a5b0edfd3df.png?resizew=208)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92a37dbc8484f51a3d2a25a509838d86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef1e7984a935eb4ac5730ccea966af4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18dccba7bc301e4913b1a4856afae466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d697d914ec99d6edb5a6ab7efe1c5686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15a13b4190ac3d5feaee27a4c97b21b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adac343f5a716a1959eb0abbcdac0bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530be0354ac54e554421d9c82e5070e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e58303bdbbdf9b78308135ee1ed413d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a301324443eb93b467134a86890dd9ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
您最近一年使用:0次
2022-03-17更新
|
1402次组卷
|
4卷引用:湖北省武汉市武昌区2022届高三下学期3月模拟数学试题
湖北省武汉市武昌区2022届高三下学期3月模拟数学试题江苏省无锡市2022届高三下学期3月模拟数学试题(已下线)考点09 解三角形-1-(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)(已下线)考点25 二项式定理及其应用(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)
名校
6 . 如图,多面体ABCDEF中,面ABCD为正方形,DE⊥平面ABCD,CF∥DE,且AB=DE=2,CF=1,G为棱BC的中点,H为棱DE上的动点,有下列结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/937a6588-9605-4bea-902b-55f620847fd2.png?resizew=175)
①当H为DE的中点时,GH∥平面ABE;
②存在点H,使得GH⊥AE;
③三棱锥B−GHF的体积为定值;
④三棱锥E−BCF的外接球的表面积为
.
其中正确的结论序号为________ .(填写所有正确结论的序号)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/937a6588-9605-4bea-902b-55f620847fd2.png?resizew=175)
①当H为DE的中点时,GH∥平面ABE;
②存在点H,使得GH⊥AE;
③三棱锥B−GHF的体积为定值;
④三棱锥E−BCF的外接球的表面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705a1b850cb8031e4a90b143bb999d8b.png)
其中正确的结论序号为
您最近一年使用:0次
2022-04-08更新
|
2619次组卷
|
9卷引用:东北三省三校2022届高三第二次联合模拟考试数学(理科)试题
东北三省三校2022届高三第二次联合模拟考试数学(理科)试题(已下线)查补易混易错点06 立体几何-【查漏补缺】2022年高考数学(理)三轮冲刺过关湖北省武汉市硚口区2022届高三下学期5月训练数学试题(已下线)第11练 空间直线、平面的平行-2022年【暑假分层作业】高一数学(人教A版2019必修第二册)山西省山西大学附属中学校2022届高三三模(总第七次模块)理科数学试题湖南省长沙市长郡中学2023届高三上学期第三次月考数学试题辽宁省协作校2022-2023学年高二上学期期中考试数学试题湖南省怀化市湖天中学2022-2023学年高三上学期11月月考数学试题辽宁省鞍山市岫岩满族自治县2022-2023学年高二上学期期中数学试题
解题方法
7 . 已知数列
的前n项和为
,
,若存在两项
,
,使得
,则下列结论正确的是___________ .(填写所有正确的序号)
①数列
为等差数列;
②数列
为等比数列;
③
为定值;
④设数列
的前n项和为
,
,则数列
为等差数列.
![](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/60965815aa04043db051b7bd89eda80d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/681ae1522a36768618f7ddaf74abbb7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/300e2a4fd67460b554c5a1b6250b463f.png)
①数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
②数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
④设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/322a562f21a7104a2a1e238bc2ddbe79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5603dc343728b22e51232c29f3f3078b.png)
您最近一年使用:0次
2022-01-15更新
|
571次组卷
|
4卷引用:2022年新高考北京数学高考真题变式题5-8题
(已下线)2022年新高考北京数学高考真题变式题5-8题(已下线)2022年新高考北京数学高考真题变式题13-15题贵州安顺市2023届上学期高三期末数学(文)试题贵州省贵阳市五校2022届高三11月联合考试数学(理)试题(三)
名校
解题方法
8 .
,
为空间中两条互相垂直的直线,等腰直角三角形
的直角边
所在直线与
,
都垂直,斜边
以直线
为旋转轴旋转,有下列结论:①当直线
与
成
角时,
与
成
角;②当直线
与
成
角时,
与
成
角;③直线
与
所成角的最大值为
;④直线
与
所成角的最小值为
;其中正确的是___________ (填写所有正确结论的编号)
![](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/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
您最近一年使用:0次
名校
9 . 已知
,
,…,
(n为正整数)是直线
上的n个不同的点,设
,当且仅当
时,恒有
(i和j都是不大于n的正整数,且
),
.有下列命题:
①数列
是等差数列;
②
;
③点P在直线l上;
④若
是等差数列,P点坐标为
.
其中正确的命题有___________ .(填写所有正确命题的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/042f6277c98e108cab95992342e4bfd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d09490514476657414d8991d633c9d6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4c5b2ecf3d4a067272790f360b5d05d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b47de6409d3ff5da9560329819eba385.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9080a7449480ea117e133abce07db351.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8db49d097b26af86f50bd45d4601a9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/614dff0cb877d00d301584ccb5dbccda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b71af6590f0f369c164a054a8b63bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7575f3f157337fa0a1eb565ad49a33.png)
①数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1165edc23b5782b5942ef7e79130bb94.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/496df17ad7e5c372200aa5cdcf2e093f.png)
③点P在直线l上;
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5dc4024dd556d444a0668ebcbbe328b.png)
其中正确的命题有
您最近一年使用:0次
2022-01-21更新
|
885次组卷
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3卷引用:上海市复兴高级中学2021-2022学年高二上学期期末数学试题
上海市复兴高级中学2021-2022学年高二上学期期末数学试题(已下线)一轮复习适应训练卷(3)-2022年暑假高二升高三数学一轮复习适应训练卷(全国通用)上海市松江二中2021-2022学年高二下学期期末数学试题
名校
10 . 如图,矩形
中,
,
为边
的中点,将
沿直线
翻折至
的位置.若
为线段
的中点,在
翻折过程中(
平面
),给出以下结论:
①三棱锥
体积最大值为
;
②直线
平面
;
③直线
与
所成角为定值;
④存在
,使
.
则其中正确结论的序号为_________ .(填写所有正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80f51c31583fea58fde645474d60b8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa2a83fed9bf4cb09d84a980452e346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8588e18e27bfebf7c81c7e3c7efb1149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
①三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb79f948d408ab4fb6708bde172c5e5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11b9f96b8ecc3cb000bb2f030809f225.png)
②直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8c70966a318ef8ecf874257f5c5e5db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/657dffbd3623b705f871878fbd9df57e.png)
③直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce1b066f8869d0ff4513f7a99745125.png)
④存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa2a83fed9bf4cb09d84a980452e346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2181c78134c310f746eab44b9124e63b.png)
则其中正确结论的序号为
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/2/db8c3c80-3639-479e-8ae4-e7aeaef6394b.png?resizew=239)
您最近一年使用:0次
2022-07-01更新
|
1369次组卷
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5卷引用:山西省太原市2021-2022学年高一下学期期末数学试题