解题方法
1 . 已知函数
,若存在非零实数a,b,使
恒成立,则满足条件的一组值可以是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
_______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73cbe0d130e4b7c34669a8bb233612dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6856ae3d715af6f8f5d38c9842a0ba5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
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名校
解题方法
2 . “
”是“直线
与直线
平行”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7dab0669f265d42e4a1ca677d2fa992.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb0e0364f27267cfa86bc79148db263.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 |
您最近一年使用:0次
2024-05-24更新
|
1469次组卷
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2卷引用:江苏省南通市2024届高三高考考前押题卷(最后一卷)数学试题
3 . 现某社区服务中心俱乐部将5名京剧演员、2名说书演员分配到甲、乙、丙3个居民区去义演,则每个居民区都有京剧演员的分配方法有( )
A.240种 | B.640种 | C.1350种 | D.1440种 |
您最近一年使用:0次
4 . 中国戏曲中人物角色的行当分类,可以有生、旦、净、末、丑五大行当.现有3名男生和2名女生,每人要扮演某戏曲中的一个角色,五个行当均有人扮演,且生行、净行由男生扮演,旦行由女生扮演,则不同的人物角色扮演方式共有( )
A.6种 | B.12种 | C.24种 | D.48种 |
您最近一年使用:0次
2024-05-19更新
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599次组卷
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4卷引用:江苏省无锡市辅仁高级中学2024届高三下学期高考前适应性练习数学试题
江苏省无锡市辅仁高级中学2024届高三下学期高考前适应性练习数学试题(已下线)高三数学考前押题卷22024届普通高招全国统一考试临考预测押题密卷数学试题(A卷)(已下线)专题02 排列组合的常考题型(10类题型)-备战2023-2024学年高二数学下学期期末真题分类汇编(江苏专用)
5 . 将函数
图象上的每个点的横坐标变为原来的
倍(纵坐标不变),再将得到的图象向左平移
个单位长度,所得的图象关于
轴对称,写出一个符合条件的
的值______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2626a5bdd100424d2416a665ba0e9518.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
您最近一年使用:0次
解题方法
6 . 贝塞尔曲线(Beziercurve)是应用于二维图形应用程序的数学曲线,一般的矢量图形软件通过它来精确画出曲线.三次函数
的图象是可由
,
,
,
四点确定的贝塞尔曲线,其中
,
在
的图象上,
在点
,
处的切线分别过点
,
.若
,
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/6cb9e88d3e58141dba299dcd8edc4e18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb6fd712d967a36c027693a54f91470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f63f0bdeade1904c747ec9ef0ff3443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d776a89f4fd29dccffe1040069d59ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
7 . 如图所示,已知正方体
的棱长为3,
,
分别是
,
的中点,
是
上一点,且
平面
.
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982d01f052709b72afeaf1015fc7acc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c08b9a48b3f89132f323efcdb014430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe61d39d080872caa8973a70a3b4955.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/becf2941e15d668d93ea6ed980afd0ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c08b9a48b3f89132f323efcdb014430.png)
您最近一年使用:0次
8 . 已知
,
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8cfbe9e63d1b1805cb4d5f9102c4045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/452347bcb4d517b03443787a157ff5c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450398974b1561ca801e102e16df6789.png)
A.2 | B.3 | C.4 | D.5 |
您最近一年使用:0次
9 . 已知函数
.
(1)若
恒成立,求
的取值范围;
(2)若
有两个不同的零点
,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d641340e7cd84102f0e8bad1a196ee.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5479b9a3456d44b5fabdf6a408569fc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ca13a93b5f401c0d39ba52b0cffcb0.png)
您最近一年使用:0次
10 . 记
是虚数单位,复数
满足
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6c18b0b401143f4f21dd94f5e606cd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b106d8edf801bbcc1c111b855fd986.png)
A.2 | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
2024-05-18更新
|
739次组卷
|
2卷引用:江苏省苏州市部分高中2024届高三下学期4月适应性检测(高考指导卷)数学试题