1 . 已知函数
,则下面结论正确的是
![](https://img.xkw.com/dksih/QBM/2016/9/28/1573048556093440/1573048562114560/STEM/cefe00dd14c1471cbbce7c58398d2485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ec2ad52eb5f4e931c4023a8cfb05ec9.png)
![](https://img.xkw.com/dksih/QBM/2016/9/28/1573048556093440/1573048562114560/STEM/cefe00dd14c1471cbbce7c58398d2485.png)
A.函数![]() ![]() |
B.![]() |
C.函数![]() ![]() |
D.函数![]() ![]() |
您最近一年使用:0次
名校
解题方法
2 . 在区间
上随机地取一个数
,则事件“
”发生的概率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/049013fd961b8bfaf6b20c89027407c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41836a7dafaf43e1bd233763b4d53d34.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 如图1,2分别是某款篮球架的实物图与示意图,已知底座
米,底座
与支架
所成的角
,支架
的长为2.50米,篮板顶端
点到篮筐
的距离
米,篮板底部支架
与支架
所成的角
,求篮筐
到地面的距离(精确到0.01米)(参考数据:
,
,
,
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d46c4dd21c34f7dea6629478b2bdbd16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764e2d4a3707aac010f4b8b27c4221d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfbc98c29eedfd5e6667be5b7b8e50c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a16f5621716bfef7a056a3f2712feb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a434077efa307492b98115a7b143e9d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39a5cbe12e0c2baba0623e130f39fb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4658f9b53f79c7627a227922a9abd102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d8a04a77e5957c44201052bfb172b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52881be613aa404e553da30d8987cfad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47bb3f35e3db7c1f3a3dd3eb20151b5f.png)
![](https://img.xkw.com/dksih/QBM/2017/9/15/1774464467001344/1775818797154304/STEM/ea0e8c444fef4eeea56b10aeff35f022.png?resizew=228)
您最近一年使用:0次
4 . 如图,在四边形
中,
,
,
为
的中点,连接
,过点
作
交
于点
,连接
,已知
.
(1)求证:
;
(2)若
,求
的长度;
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fc1ba2766874730daaad7d3bb7a8ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a08d81353a3ea431787f550b9d9b7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40fe2cc764de5fa58e9d90d750c5c528.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33f0279b8c6e1097c2686173474227f8.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa80cfd38f59e5cbbb30628d03113689.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b867df58301f823a4c2e11587f01fc5d.png)
![](https://img.xkw.com/dksih/QBM/2017/9/15/1774464467001344/1775818797252608/STEM/0868c767ca3f415b9dfaa4c5ddbfcfef.png?resizew=105)
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13-14高三上·湖北·阶段练习
名校
5 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e25b4f294c643e9332aa5418102871a9.png)
______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7fdccadfa7469825f8a5ccbf495c24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e25b4f294c643e9332aa5418102871a9.png)
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6 . 已知函数
.
(1)求函数
的最小正周期及对称中心;
(2)在
中,角
为钝角,角
、
、
的对边分别为
、
、
,
,且
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/393e597e3acbd4a48dea0efc47d815dc.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/4bf6112c13af79ac862bf58e7545337f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6074f4c2e8c6ec7ea0a39cd045463ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b3049dc89fb587c0793d30c3ac43bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
您最近一年使用:0次
7 . 将函数
的图像经过恰当平移后得到一个奇函数的图像,则这个平移可以是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eefca43d385383c1a57daa26e20356f.png)
A.向左平移![]() |
B.向左平移![]() |
C.向右平移![]() |
D.向右平移![]() |
您最近一年使用:0次
8 . 设
,
,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c2c715c3c6e2b2723e955a2ef141da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e00dc84d47999d13554d3c6ef1f77b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b31c673ad98e66332fb09b9131f48d7.png)
A.1 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 已知函数
.
(Ⅰ)求
的值域;
(Ⅱ)设△
的内角A、B、C所对的边分别为a、b、c,已知
为锐角,
,
,
,求
的值.
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573094781263872/1573094787260416/STEM/f11e7925ee924ec89e25144b2e97cf04.png)
(Ⅰ)求
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573094781263872/1573094787260416/STEM/0684b95387b0415fabdc212b5bc64695.png)
(Ⅱ)设△
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573094781263872/1573094787260416/STEM/3aad55c040ef4d4d92b641d8f3048624.png)
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573094781263872/1573094787260416/STEM/dcb3632df2c44b9c9da836e2eb33f3e5.png)
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573094781263872/1573094787260416/STEM/09ae2d96f02344b9861719147ec19d17.png)
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573094781263872/1573094787260416/STEM/eed8e7028e3e4ad1a215c346ad517126.png)
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573094781263872/1573094787260416/STEM/a223e1346b194e91b60b88d25c1a07b7.png)
![](https://img.xkw.com/dksih/QBM/2016/10/26/1573094781263872/1573094787260416/STEM/b9bf7788ef674648b48593493770ed56.png)
您最近一年使用:0次
2016-12-03更新
|
281次组卷
|
3卷引用:2015-2016学年安徽省合肥一六八中高二上学期开学考试文科数学试卷
名校
10 . 已知函数
的最大值为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a2142773ed3fd5b84c1a585ccd4b66b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619096595112f0340a43b756e114dd3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
2017-06-22更新
|
293次组卷
|
2卷引用:安徽省六安市第一中学2017-2018学年高二上学期开学考试数学试题