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1 . 下列积分值等于1的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
2 . 对于函数
,在使
恒成立的所有常数
中,我们把
中的最大值称为函数
的“下确界”,则函数
的下确界为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd5ac54a99b60c157af732e05972c837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a5869bc299083ccc575e613798c4e08.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-04-27更新
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186次组卷
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2卷引用:内蒙古呼和浩特市二中2019-2020学年高二下学期数学(文)月考试题
3 . 已知
是
的共轭复数,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55ba16911fd262591a9d7b07fbd38e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3873583844928c8dffcce4ab0599a4ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
A.4 | B.2 | C.0 | D.![]() |
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4 . 已知函数
,
.
(1)讨论函数
的单调性;
(2)证明:当
时,方程
有且仅有一个解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77ecd764374d622455deb3bdd686f3dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259225e8576ea20bd3ca315e2a5411fe.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790eacf3ea708dc5cfbb85164e57fb27.png)
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5 . 在复平面内,已知平行四边形
顶点
,
,
分别表示
,
,则点
对应的复数的共轭复数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad8c48d17a6409d9e25bc7adab1b686d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/014d0e3964e22a3bf1b34b3d77d877ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 如图,现有一个
为圆心角、湖岸
与
为半径的扇形湖面
,现欲在弧
上取不同于
的点
,用渔网沿着弧
(弧
在扇形
的弧
上),半径
和线段
(其中
),在该扇形湖面内隔出两个养殖区域——养殖区域Ⅰ和养殖区域Ⅱ,若
,
,
,求所需渔网长度(即图中弧
,半径
和线段
长度之和)的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940f6d435d72a0464ea3c6be8dcb9a8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9a74093dad8c33ea9d3dfde402683ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d162c29b1e484cfc87350dd68f00b85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f7983aade7a7c61f065c5bd3569fbd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/2017/12/14/1838209713094656/1839153537589248/STEM/2b1cc6f36b684dc4b86ca0172a4637b8.png?resizew=210)
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解题方法
7 . 若在曲线
上一点
处的切线与
平行,则
点的横坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dab884802016b29f54c0e1c9efe43a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e6e15daf7b14dbff32c390f4984dcfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.1 | B.![]() | C.![]() | D.2 |
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8 . 已知
,
为自然对数的底数,下列结论正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f1f8b3b98495effb739fa3165a495cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
A.![]() | B.![]() | C.![]() | D.不能确定 |
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9 .
值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e43025220655e827511636ae059123f0.png)
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2019-12-12更新
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2卷引用:内蒙古呼和浩特市2021届高三质量普查调研考试理科数学试题
2014·吉林长春·三模
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10 . 复数
满足
,则复数
在复平面内对应的点在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd37b4b861e0b0778ce401fa8705c0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
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2016-12-02更新
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1255次组卷
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10卷引用:内蒙古呼和浩特市2019-2020学年高三上学期质量普查调研考试数学(理)试题
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