名校
解题方法
1 . 已知函数
,则函数在区间
内零点的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ef4dbd03c3f454f804890076d9ab79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad14579830d0293b1390911cb603eb02.png)
A.1 | B.2 | C.3 | D.5 |
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名校
2 . 下列说法错误的个数为( )
①已知
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b08ca29db8f436e0eb09d367943a1502.png)
②已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5561372d2b22000e1bd1b275f7152d1.png)
③投掷一枚均匀的硬币5次,已知正面向上不少于3次,则出现5次正面向上的概率为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b8d1ca7682da10dc7f36e858593d51f.png)
①已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae41b4e83c79f13cb4d410ec6c642da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2b1b910246ef656d8270529cf68e1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b08ca29db8f436e0eb09d367943a1502.png)
②已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58f36e1cabd0972a7677f852793ef5e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5561372d2b22000e1bd1b275f7152d1.png)
③投掷一枚均匀的硬币5次,已知正面向上不少于3次,则出现5次正面向上的概率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b8d1ca7682da10dc7f36e858593d51f.png)
A.0 | B.1 | C.2 | D.3 |
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昨日更新
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2卷引用:浙江省金华市卓越联盟2023-2024学年高二下学期5月阶段联考数学试题
3 . 若数据
、
、⋯
的平均数是5,方差是4,数据
、
、⋯、
的平均数是4,标准差是
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5704542745b462c6500054e9ce250d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feaf4550cb67e06e064aa83d33368433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46d494338cdc195754e32d03e8f85113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c29424eace2015e7ff2f5cee0cabccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f9e79e12a35dd2ba93550339a34332.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e8297880571d8a02c0c88c8d2b4083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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4 . 已知
是边长为1的正三角形,
是
上一点且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f865cb2e4a1c575b331e252a21d7d7fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07377d977ef6a8f518b3004564544e5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce5d6c8be7019d123c0b1d4ab9e52814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d476da94dcade5f83541f3fca22a1039.png)
A.![]() | B.![]() | C.![]() | D.1 |
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4卷引用:浙江省宁波市镇海中学2024届高三下学期适应性测试数学试卷
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名校
解题方法
5 . 已知
,
,
分别是
三内角
,
,
的对边,则“
”是“
为直角三角形”的( )
![](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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35069268e62dbff379b4555d3f7d6016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
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5卷引用:浙江省重点中学四校2023-2024学年高一下学期5月联考数学试题
浙江省重点中学四校2023-2024学年高一下学期5月联考数学试题 浙江省台州市温岭市新河中学2023-2024学年高一下学期6月阶段性考试数学试题(已下线)专题04 解三角形小题常考题型归类-期末考点大串讲(人教B版2019必修第四册)(已下线)第2套 全真模拟卷 (基础)【高一期末复习全真模拟】(已下线)解三角形-综合测试卷B卷
6 . 已知
,
都是正实数,若向量
,
,且满足
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80d769ab21af5365d3c00dc617375ce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2443e72f8124a71683b6751f5eef003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812e4364e2827b9158005bf161ac1748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
A.50 | B.![]() | C.![]() | D.![]() |
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7 . 在正三棱柱
中,
面ABC,
,则异面直线
与
所成角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0dd04b65278f96a9970a3f039b468d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
8 . 袋中装有5个大小相同的球,其中有2个白球,2个黑球,1个红球,现从袋中每次取出1球,取出后不放回,取得白球得1分,取得黑球得2分,取得红球得3分,直到取到的球的总分大于或等于4分时终止,用
表示终止取球时所需的取球次数,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60176522fe861b4fffaa3ed3e37c4d58.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
9 . 已知棱长为1的正方体
分别是AB和BC的中点,则MN到平面
的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe2d7f4c9ae3d6c991540bca0af97c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a52848aff08399a36f217356007a4b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 已知甲组数据由
这
个数据构成,记这组数据的平均数为
,方差为
;乙组数据由
,
这
数据构成,记这组数据的平均数为
,方差为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0494c6d226729dd902a2940ab7228fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288fe3e82e74b326e19704887ba71f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c7bb6fb4b26508ec5f6f62ee846cb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0494c6d226729dd902a2940ab7228fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288fe3e82e74b326e19704887ba71f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0876215b2fd463d151523cd3c6b447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32a439b62ead91b1481d1f85e3ee8cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c9e60e949f1626a58a8c0eb756f580d.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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