名校
1 . 下列说法正确的是___________ .(填序号)
①直线
:
与直线
:
平行的充要条件是
;
②若
,则
的最大值为1;
③曲线
与直线
所夹的封闭区域面积可表示为
;
④若二项式
的展开式系数和为1,则
.
①直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b3c8be9aee074c9a3203abace248ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f06443b381a16ea4a5e39e19794a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c53ea3373af8c2c835a1bfbe2c742d8a.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7dbc702617c765a573961953cc0901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
③曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3eec02f1eec24b3b2042ab7f6e96bca.png)
④若二项式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6908dcfaba9516f0ebea28bc043fc08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
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名校
2 . 下列说法中所有正确命题的序号是__________ .
①“
”是“
”成立的充分非必要条件;
②
、
,则“
”是“
”的必要非充分条件;
③若一个命题的逆命题为真,则它的否命题一定为真;
④设等比数列
的前
项和为
,则“
”是“
”成立的充要条件.
①“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200849ce71f53c0321506e27de437b8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0973815df3264c67f94eccde1c279ea.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d5f0d374837655cc286d326305da36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc03d6198a94cfdf5ba108fd4ae668e2.png)
③若一个命题的逆命题为真,则它的否命题一定为真;
④设等比数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.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/179513ce80436471efbe1d9b31735f7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5f00dae44d94b0499bd40de73772b4b.png)
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5卷引用:江苏省如东高级中学2017-2018学年高二上学期期中考试数学试题
江苏省如东高级中学2017-2018学年高二上学期期中考试数学试题(已下线)黄金30题系列 高二年级数学(理) 小题易丢分(已下线)黄金30题系列 高二年级数学江苏版 小题易丢分(已下线)黄金30题系列 高二年级数学(文) 小题易丢分安徽省滁州市定远县重点中学2019-2020学年高二下学期期中数学(理)试题
3 . 命题“∃x∈R,x2+ax-4a<0”为假命题,是“-16≤a≤0”的 ______ 条件.
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2卷引用:陕西省西北农林科技大学附属中学2016-2017学年高二下学期期末考试数学(理)试题
4 . 下列命题中,正确的序号是________ .①存在
,使得
② 若
,则
③ “
”是“
”的充要条件④若函数
在
有极值
,则
或
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee21db6628e4db3f5831370549fa96b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b684222b196673f8e6ee9e73931b2e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d4de9cbec6024f5ee2dc3636de55030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4396ab83803cb86dceb4f0dd72f05111.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84c462ebeb0d4b1614f35933d5145026.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e280e3dc7c79c0cd2ce6da7ef36bc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e328c20ada7164298ca70ceb5d5194ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613ddc0b7a43d3f99a672632d7a13baf.png)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572658740379648/1572658746499072/STEM/6dbf9baa0fad440ea8857dea1532fe3f.png?resizew=71)
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5 . 设U为全集,A、B是U的子集,则“存在集合C使得
”是“
”的_____ 条件.(选填“充分不必要”、“必要不充分”、“充要”、“既不充分也不必要”)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe35107605788feda0afe928e36131b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ed5930525a04c8fa26e535147e3085.png)
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14-15高三上·山东菏泽·期中
6 . 下列4个命题:
①“如果
,则
、
互为相反数”的逆命题
②“如果
,则
”的否命题
③在△ABC中,“
”是“
”的充分不必要条件
④“函数
为奇函数”的充要条件是“
”
其中真命题的序号是________ .
①“如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f1a686b80b8f109a929f58c2de7201d.png)
![](https://img.xkw.com/dksih/QBM/2015/7/8/1572172284862464/1572172290457600/STEM/89a7007e898a4b1ba20c1317a6128fc6.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2015/7/8/1572172284862464/1572172290457600/STEM/ec88bd5b5f374b0e833fb2c2b281e646.png?resizew=15)
②“如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a566ee5d2d5029fe2b63838ede01cecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
③在△ABC中,“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c253e2d257e9d313c50dc7308b3739ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d236e7315396d77ee666880edd1bef49.png)
④“函数
![](https://img.xkw.com/dksih/QBM/2015/7/8/1572172284862464/1572172290457600/STEM/776751790d1a4d0b8a79ac25f2bf0805.png?resizew=117)
![](https://img.xkw.com/dksih/QBM/2015/7/8/1572172284862464/1572172290457600/STEM/c1479d0cdfbb4f8f9b146bc619b034c7.png?resizew=97)
其中真命题的序号是
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5卷引用:2015届山东省菏泽市高三上学期期中联考理科数学试卷
11-12高三下·四川雅安·阶段练习
7 . 命题①若
是偶函数,其定义域是
,则
在区间
是减函数.
②如果一个数列
的前n项和
则此数列是等比数列的充要条件是![](https://img.xkw.com/dksih/QBM/2015/4/30/1572089555517440/1572089561440256/STEM/9f1b37f1d8644d59b2c50a8bb7b9038b.png?resizew=61)
③曲线
过点
处的切线方程为:
.
④已知集合
只有一个子集.则
.
以上四个命题中,正确命题的序号是__________ .
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572089555517440/1572089561440256/STEM/90a03208835f4af3a908567b8970825c.png?resizew=160)
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572089555517440/1572089561440256/STEM/601fac4e80414a1c99a9cb92cfb393f6.png?resizew=61)
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572089555517440/1572089561440256/STEM/68a97e1c57074a669c5c8c818d96e2b2.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572089555517440/1572089561440256/STEM/6a388c341e1f448e90b4f37f7c4a89b9.png?resizew=69)
②如果一个数列
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572089555517440/1572089561440256/STEM/592dc290f7744f3188cc23e61cc4c3a5.png?resizew=31)
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572089555517440/1572089561440256/STEM/b824ae4921094401b42b9f7608daed36.png?resizew=207)
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572089555517440/1572089561440256/STEM/9f1b37f1d8644d59b2c50a8bb7b9038b.png?resizew=61)
③曲线
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572089555517440/1572089561440256/STEM/da5d1c77a96243aea7e9c603ceda7939.png?resizew=91)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b9960481aa78cd8e03c57d542c9ca8.png)
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572089555517440/1572089561440256/STEM/60a03ced9200404d90bdc3a8c75d3c5e.png?resizew=91)
④已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d00384a7decb3a7da13bac904029a2b6.png)
![](https://img.xkw.com/dksih/QBM/2015/4/30/1572089555517440/1572089561440256/STEM/bbbc31d693f949d18e944accac2fc6a3.png?resizew=35)
以上四个命题中,正确命题的序号是
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3卷引用:2012届四川省雅安中学高三下学期阶段测试理科数学试卷
10-11高二下·浙江宁波·阶段练习
8 . 设全集为
,在下列条件中,是
的充要条件的有 .(将正确命题序号填在横线上)①
;②
;③
;④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52b4f24969673c863b5aff4fb6751ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c592afdbc02345892dfd042f6419baf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e141eaa85f7e8048cdfb9a8cae78339.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd67690abad8a347e8e7ada6ff768df.png)
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