名校
1 . 若
,
满足条件
,当且仅当
,
时,目标函数
取得最小值或最大值,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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85f0cb16123ee39f8bd6bf86ca623aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da322ac8867e8a47c6588601078abf18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baaa79c2c101deb8595d3b296ad2b73d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
2 . 若
是整数,则称点
为整点,对于实数
,约束条件
所表示的平面区域内整点个数为( )个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa3cb7e6b375b8df66f9e503b1b0e7bd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
3 . 实数
满足约束条件
且目标函数
的最小值是
,最大值是
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26528bec0ab6402fca3628ab9a9c6c96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75407f5349719aba26f58213459793eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcf3023123fae79d5852d940a607546a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 在
的可行域内任取一点
,则满足
的概率是__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ccbffe111487812298d21ccb5a22fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64d924836b4292239d9726c6473d7f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dfc1df5693b1b747b0c8edb55079e8e.png)
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名校
5 . 设实数
满足约束条件![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0410b6963320104a94afc53e1ca7cdfb.png)
的最小值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0410b6963320104a94afc53e1ca7cdfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e5a41f62c8e84d0fa16ea07a13d0257.png)
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6 . 已知
,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9715d3e6f435c17863475b86b1da568c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa95fd470475d1de3e48cde481323bbe.png)
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解题方法
7 . 若
满足
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea3ffca02e5aba40f948479f01770d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee4ff51bc02334212b87e608870469b.png)
A.3 | B.2 | C.0 | D.-2 |
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解题方法
8 . 已知
是集合
所表示的区域,
是集合
所表示的区域,向区域
内随机的投一个点,则该点落在区域
内的概率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deebd2c36a5e644a566f1980091359bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943aa50cd933a1f934cc5737d1416d3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89e32039addb008103a2a8344225214a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4905fe4b6957ec69fbb2075edfee8ed8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deebd2c36a5e644a566f1980091359bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89e32039addb008103a2a8344225214a.png)
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解题方法
9 . 设曲线
及直线
所围成的封闭图形为区域
,不等式组
所确定的区域为
,在区域
内随机取一点,则该点落在区域
内的概率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2b3194355bf3d24ddacb349da717e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6cfe2756c3e63392f1ffee235fdab73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-05-27更新
|
232次组卷
|
2卷引用:重庆市重庆一中2016-2017学年高二下学期期中考试数学(理科) 试卷
名校
解题方法
10 . 设
满足约束条件
,若
的最小值为
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baad70401b8a2a5fdc8a2729801f728a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddc25da91439b3abac057c932aad89e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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