1 . 当
时,
的最小值是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29f1741304588dac5bf188fca0d879c2.png)
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2016-12-04更新
|
247次组卷
|
2卷引用:2015-2016学年广东汕头市高二下学期期末数学(文)试卷
2 . 已知
,
满足不等式
,且函数
的最大值为8,则常数
的
值为 ;
![](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/9c66e10f6735b1072b4e8f3af4f58182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51a67533951a592d0e329384d3fbc3ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
值为 ;
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3 . 在等比数列
中,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e4487468ab2823d6dbf7f0ebd2eb38.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2803cba8d834dd8af69ef19e6954fd87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e4487468ab2823d6dbf7f0ebd2eb38.png)
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名校
4 . 已知等比数列
的第5项是二项式
展开式中的常数项,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/720b2ab52a64e5229f4a66f9a94b2b3e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe229b24e2d56ff6b491725ceae4ff2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95b3c3ef2e1fae0ddd7dd17d24710269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/720b2ab52a64e5229f4a66f9a94b2b3e.png)
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2016-12-04更新
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415次组卷
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6卷引用:2017届广东省仲元中学高三9月月考数学(理)试卷
5 . 如果实数
满足:
,则目标函数
的最大值为________ .
![](https://img.xkw.com/dksih/QBM/2016/9/14/1573022152835072/1573022158970880/STEM/ca9e628a09284aa58ae1109ebcf872c5.png?resizew=28)
![](https://img.xkw.com/dksih/QBM/2016/9/14/1573022152835072/1573022158970880/STEM/fa7ee43c4ca64b2db2ba4d742bffeffc.png?resizew=93)
![](https://img.xkw.com/dksih/QBM/2016/9/14/1573022152835072/1573022158970880/STEM/cb54735dc1064bc09eceab108d60833b.png?resizew=70)
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6 . 已知O是坐标原点,点A(-1,1)若点M(x,y)为平面区域,
上的一个动点,则
的取值范围是_____ .
![](https://img.xkw.com/dksih/QBM/2016/9/5/1572996731781120/1572996737662976/STEM/f8c93ae9485344a4b2ff08e687443a3b.png?resizew=68)
![](https://img.xkw.com/dksih/QBM/2016/9/5/1572996731781120/1572996737662976/STEM/524d7eea371c4c15a89005efc13a87c8.png?resizew=64)
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7 . 设
的内角
的对边分别为
,
,
.若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
_____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f002f960ec07ea229ed243e2d991d83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c365da2b0ffc3e6263dcd363e737847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
您最近一年使用:0次
2016-12-04更新
|
614次组卷
|
4卷引用:2015-2016学年广东省惠州市惠阳高中高二下期中理科数学试卷
8 . 已知变量
满足约束条件
,则
的最小值为__________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e482ae9a249567b395e012a58d6ac56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d621f9294f046f7da6b8960b51a89814.png)
您最近一年使用:0次
2016-12-04更新
|
153次组卷
|
3卷引用:2015-2016学年广东省惠州市惠阳高中高二下期中理科数学试卷
9 . 已知实数
满足不等式组
,则
的取值范围是___________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a23e347bd749928384fc28852db2bd1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec428431f4cf06c0fad9c1798cb430c9.png)
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10 . 已知
的面积为
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41db498f025052df2dbb1e50ab672675.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d11a5a756d8fdd7b294c4f5fd63467b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41db498f025052df2dbb1e50ab672675.png)
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