名校
1 . 已知
,
,
,则
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59be3cdfa080671467d91c17ebb36bef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
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解题方法
2 . 已知曲线
关于直线
对称,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e446428877558381252056e196467d04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360c1098f4d49b60307a93c82a6495f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57f879f6e8df7d5fb261328806260b3.png)
A.![]() | B.4 | C.![]() | D.8 |
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解题方法
3 . 若关于
的不等式
的解集为
,且
,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acf2c5c0560e9118b11643524423f41f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfbbaae8420d12d64e0b7fca9cda4d44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
4 . 已知函数
,函数
.
(1)若
,求
的值域;
(2)若
:
(ⅰ)解关于
的不等式:
;
(ⅱ)设
,若实数
满足
,比较
与
的大小,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25d5c7479bf62d5c9fc71bf46b56866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd6cc4bdc89f1475cd1b3e21808ff6a3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b77589ec03475a3a653d684f6f23b467.png)
(ⅰ)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
(ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360ff131c51a4ef6745538c18cec92c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604be3e10ddd5e520c921a8e5ab923e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a99a77bd57c52838c723803db147e17d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca8b26c3ad6d892590290a2304126bd.png)
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5 . 平面直角坐标系xOy中,动点
到两坐标轴的距离的乘积为4,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21872d8f6a518e0a2993ccf7a795ed2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b163a80201e236089ad915ee61440bd3.png)
A.1 | B.![]() | C.![]() | D.2 |
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6 . 若对一切
,都有
(a、b、
,
),试求函数
在
时的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c828e94cfd04e8be1e77bca1ec5db8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e2367b2b1d0001f564542ef80f981d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9ca15de80717300c0518cd82b561cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e639f66c1cf038d5e198e06b7820419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c828e94cfd04e8be1e77bca1ec5db8.png)
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解题方法
7 . 设
,则“
”是“
”成立的( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbd73ed7de4ec9894ee36332b592dc70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a730f248efcbff2abfd3229f00f355c.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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8 . 若a,b,x,
,则
,是
成立的___________ 条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f370a1d4dd341e5ab1774a66c66c1204.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbc8897cd750acf343e654542d1e020.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b71aad3be3a9e411e2344001fa4deb.png)
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9 . 已知空间向量
,
,且
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b3e84916f89f0cffc2e03c879b65fb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a8d49bf33e578b25811e22e26dbf584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ebe5febe579965236eaa87b571e5e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f0043d442fc7bd9177c2e3716d3d762.png)
A.![]() | B.![]() | C.2 | D.4 |
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2024-03-04更新
|
260次组卷
|
3卷引用:山东省烟台第一中学2023-2024学年高二下学期2月月考数学试题
名校
解题方法
10 . 已知函数
.
(1)求不等式
的解集;
(2)设函数
的最小值为
,且
,
,
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cccdd687604a04f9575ea9fb1d19585e.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a075dce77c9a6b964a8a3fc1ee6e8c.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8610232c77741a37463feba1a66c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5d7846b4f08eee0725e2d5024a27b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55db12bc9a3b7bd2e6decaaea6ba387e.png)
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