1 . 在相距
千米的
两出测量目标
,若![](https://img.xkw.com/dksih/QBM/2016/11/23/1573169345814528/1573169351901184/STEM/2ca734ed6e944c42b49eb3a65fa5972a.png?resizew=92)
,求
之间的距离是_____ 千米.
![](https://img.xkw.com/dksih/QBM/2016/11/23/1573169345814528/1573169351901184/STEM/798cf9a5753e4d1da4951fa4f9b00bdd.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2016/11/23/1573169345814528/1573169351901184/STEM/f2c058eeb415476e860bd4a5a3cecf1d.png?resizew=32)
![](https://img.xkw.com/dksih/QBM/2016/11/23/1573169345814528/1573169351901184/STEM/402f454429b24d3eb255897d2be2d0e9.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/11/23/1573169345814528/1573169351901184/STEM/2ca734ed6e944c42b49eb3a65fa5972a.png?resizew=92)
![](https://img.xkw.com/dksih/QBM/2016/11/23/1573169345814528/1573169351901184/STEM/495c7713aaa447c696174715e7a6ab3b.png?resizew=85)
![](https://img.xkw.com/dksih/QBM/2016/11/23/1573169345814528/1573169351901184/STEM/5df03d63c2fb407588f16ed0abcb84cc.png?resizew=33)
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2 . 设数列
的前
项和为
, 若
,
N
, 则数列
的前
项和为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0bbb67593c95bab93ff67145ae95ea3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52223b89a6d01df1de9d329a8145acea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81a57cae6fe8a6542f2b56ff5e0c9b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8050391385b496e9c059201e4f12600a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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3 . 若
,则
的最小值等于_____ .
![](https://img.xkw.com/dksih/QBM/2016/10/20/1573085501874176/1573085508034560/STEM/f7cf5a706bd24269b2d8b6e7620ce059.png?resizew=79)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0946479c941fbedaec12db71df4db991.png)
您最近一年使用:0次
4 . 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)
您最近一年使用:0次
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
5 . 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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6 . 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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7 . 已知在
中,角
所对的边分别为
.若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
___ .
![](https://img.xkw.com/dksih/QBM/2016/10/8/1573057419362304/1573057425563648/STEM/5d3400152c2f42c1b446c560fd672235.png?resizew=43)
![](https://img.xkw.com/dksih/QBM/2016/10/8/1573057419362304/1573057425563648/STEM/1be612bdab7d47018664a7bfcf7483e7.png?resizew=49)
![](https://img.xkw.com/dksih/QBM/2016/10/8/1573057419362304/1573057425563648/STEM/b678dee7a75e459c9f845b08b2df1477.png?resizew=37)
![](https://img.xkw.com/dksih/QBM/2016/10/8/1573057419362304/1573057425563648/STEM/a46616af717b47ca839edfd941df5bab.png?resizew=78)
![](https://img.xkw.com/dksih/QBM/2016/10/8/1573057419362304/1573057425563648/STEM/ce5bcb3895cd4041a48f0d9ff1f82c05.png?resizew=84)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
名校
8 . 若不等式组
所表示的平面区域存在点
,使
成立,则实数
的取值范围是 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68eca3bef0ac82c6c18982c8030fbaf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6a4781b020b879519321e05c299f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b528557effd95e0c7debf9a635f849ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-04更新
|
525次组卷
|
4卷引用:2017届广东省仲元中学高三9月月考数学(理)试卷
名校
9 . 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)
您最近一年使用:0次
2016-12-04更新
|
415次组卷
|
6卷引用:2017届广东省仲元中学高三9月月考数学(理)试卷
解题方法
10 . 已知点
与点
在直线
的两侧,给出下列说法:
①
;
②当
时,
有最小值,无最大值;
③
;
④当
且
时,
的取值范围是
.
其中所有正确说法的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8530bca5123179cfede86d03738495e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55d12701014cf53071093e8739d089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c53ea2ddc3bf3fc9b926af55d462a02b.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b481ff501f2173c755b338d9b94ce02.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e377720fcc0e18ffa0b6e477bb0086.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6cc07106cfb74d20da736872d777149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbac6c9561350ac84cd903500fcf82d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8126b4b9450c410a0c0ee7dc170a1c5b.png)
其中所有正确说法的序号是
您最近一年使用:0次
2016-12-04更新
|
1138次组卷
|
3卷引用:广东省韶关市高中数学2016-2017学年高二上学期期中理数试题