名校
解题方法
1 . 在我国,每年因酒后驾车引发的交通事故达数万起,酒后驾车已经成为交通事故的第一大“杀手”.《中华人民共和国道路交通安全法》中规定:酒后驾车是指车辆驾驶员血液中的酒精含量大于或者等于
.某课题小组研究发现人体血液中的酒精含量
(单位:
)与饮酒后经过的时间
(单位:
)近似满足关系式
其中
为饮酒者的体重(单位:
),
为酒精摄入量(单位:
).根据上述关系式,已知某驾驶员体重
,他快速饮用了含
酒精的白酒,若要合法驾驶车辆,最少需在( )(取:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cac182fe9ab0a8d8d717e22adf3f9bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ac562e5ac2ebbc5982b4e2e20e88a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b9ddb2a7bc24f674a9d753d0320fa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1933311c0c090e1138e4dd388b7adf8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b63827bc1100ed5f90d196bca9b1520d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f7c4a8558eff6427d22b6c0c855721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dbedf6c311491cc09dd17c7bef33813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a31f08e8a65d0cec5b41b7de76f647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a995e170d82fe91845b61d4c9abe9667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3df7e2531a768fdd3441190d67b575a0.png)
A.12小时后 | B.24小时后 | C.26小时后 | D.28小时后 |
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解题方法
2 . 棱长为2的正方体
中,设点
为底面
内(含边界)的动点,则点
到平面
距离之和的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04d6165b18f1a031b2a137961832491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 已知向量
,
,
,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c958b65bafe9caae7ec41be3a7085527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f27481c3e3f0a647379ecd926e616ec2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93af88a7628c71d642d3a6df067c15f5.png)
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昨日更新
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162次组卷
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3卷引用:陕西省西安市第一中学2023-2024学年高三下学期高考考前模拟考试理科数学试题
名校
解题方法
4 . 已知
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae5a9f33df69fd5f97f9c2dce934ec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9659af61c4dd462d7962be86d0e329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 记
,若存在
,满足:对任意
,均有
,则称
为函数
在
上的最佳逼近直线.已知函数
,
.
(1)请写出
在
上的最佳逼近直线,并说明理由;
(2)求函数
在
上的最佳逼近直线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30cb4bea650ae8618d9797fafcb15758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a84abd34be284858c51851dea74564d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e37c312660ff0444b24a0f4cec11345.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b127ed49c184b58e086a9ada111bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61d48723f19dadc0eb7bc5300f75dd7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec8d68e46cb76a04d2a2ebd7c0981138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5ff6072bb799712801e9375d433783.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01745f0dff16a69a195e0d0c2c798258.png)
(1)请写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01745f0dff16a69a195e0d0c2c798258.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e97956c25f52a919e9324da39f60bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01745f0dff16a69a195e0d0c2c798258.png)
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解题方法
6 . 已知全集
,集合
,则
( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860ebb6f76cd3cb9a265dfc233002a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a87282747f3ccefec81cb5369189f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/368dd70c0435a6a2cc5ec710e31274aa.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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7 . 已知
.
(1)设函数
,若函数
与
的图象无公共点,求m的取值范围;
(2)令
的最小值为T.若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91aafaba36bf34d052ee85f12cc0a398.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3592aa85c9120fd042816dd47bba82ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12d6e540dc3435961c9c44d4805a375f.png)
您最近一年使用:0次
2024-06-08更新
|
297次组卷
|
4卷引用:四川省大数据精准教学联盟2024届高三第二次统一监测文科数学试题
名校
8 . 设
,
(1)解不等式:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd3435b82dc1ce5ed6433a9262ac531.png)
(2)设
的最大值为
,已知正数
和
满足
,令
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48e2d4ecf56e737137fba9bbc9e131e8.png)
(1)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd3435b82dc1ce5ed6433a9262ac531.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](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/034a0f4d3755f5f4934e5f11b1296c6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae71a012d99ef5c2ffdf175f1b5bfd61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
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2024-06-06更新
|
59次组卷
|
2卷引用:四川省成都石室中学2024届高三下学期高考适应性考试(一)理科数学试题
2024高三下·全国·专题练习
解题方法
9 . 已知集合
,
.若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c581a30d70e2894bbb93b96528996302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51452061e672940d11737de54c806d2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
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名校
10 . 已知
为单位向量,向量
满足
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc64abe49847ade9b78678ba1f8e0e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/483293c6d238710ee1ef906e5a85087d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94d723baf90e91b4691a2dcdd8f2a53e.png)
A.9 | B.3 | C.![]() | D.10 |
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