名校
1 . (1)求值:
;
(2)已知点
,
,
,
,试问
与
是否共线?并证明之.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d982a551f84f6c298122e8c9189f3d09.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dd162f6b5ea3023b9126daf61e76428.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02af485e17e7628fd5a3ace6e0a32ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c2df1ec4f5d17fa8590e920fac61af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c3b075ff38034555490ac2da768916.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe35c91649a5bea2518387a2b36e0c0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbba7bff7720b3aa33f29936ede7819e.png)
您最近一年使用:0次
2 . 计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2fe0efafcc95baf1e22830304f597d8.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414bc7461b921db3553f92f5c237407c.png)
您最近一年使用:0次
名校
3 . 对于实数
和
,定义运算
,则式子
的值为 .
![](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/5b1695d9948547b9d6f97df58a83ead9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff29a55d8d8917b0ab1d66db50b173cc.png)
您最近一年使用:0次
2016-12-04更新
|
537次组卷
|
6卷引用:2016届湖南师范大学附中高三上学期月考三文科数学试卷
名校
4 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8db5e96560cad14fa646e489064fc4.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d13273b615fd99070f19e83629a5257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8db5e96560cad14fa646e489064fc4.png)
您最近一年使用:0次
2017-11-26更新
|
502次组卷
|
3卷引用:湖南省衡阳市第八中学2018届高三上学期第三次月考数学(文)试题
名校
5 . 我国古代数学著作《九章算术》有如下问题:“今有蒲(水生植物名)生一日,长三尺;莞(植物名,俗称水葱、席子草)生一日,长一尺.蒲生日自半,莞生日自倍.问几何日而长等?”意思是:今有蒲生长1日,长为3尺;莞生长1日,长为1尺.蒲的生长逐日减半,莞的生长逐日增加1倍.若蒲、莞长度相等,则所需的时间约为( )(结果保留一位小数.参考数据:
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f4d8318aba2dd01bfdc4c6b77c6121.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab1cb23df1e01a5120207dbfb4ae6c9.png)
A.1.3日 | B.1.5日 | C.2.6日 | D.2.8日 |
您最近一年使用:0次
2017-10-10更新
|
476次组卷
|
5卷引用:湖南省衡阳市第八中学2018届高三上学期第三次月考数学(理)试题
6 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec003c8af0c3e2cbc3ac6007d40594a6.png)
且
.
(1)当
时,设集合
,求集合
;
(2)在(1)的条件下,若
,且满足
,求实数
的取值范围;
(3)若对任意的
,存在
,使不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/388c438b6326e3b574d5ede9a6b24a7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec003c8af0c3e2cbc3ac6007d40594a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d74d706d2e4392e25016e9101d07ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fa1476cf3552b9ae91ef039b1c6c80.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e09dbb77fd679ee825b64e0ef46038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62557a3c6b8330923e78df324b36a57c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/309caab592a4bf877b8f63ea66630d9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fa729226834bc4644f5950fcdfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17d095844022a8ed5fefc23b24878d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
9-10高二下·湖南长沙·阶段练习
名校
7 . 计算下列各式的值.
(1)
;(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81507a16a41fca808967aa23464a3b01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf563f90c47eddf7eb85c12ada7b469.png)
您最近一年使用:0次
名校
解题方法
8 . 已知函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b72cae3489da1d310e859483a5a349.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8702a40bff89b34d27ad66df3444b62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b72cae3489da1d310e859483a5a349.png)
您最近一年使用:0次
2020-12-25更新
|
96次组卷
|
2卷引用:湖南省邵阳市邵东市第一中学2020-2021学年高一上学期第三次月考数学试题
9 . (1)化简:
(
,
均为正数);
(2)求值:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe54c670ef4a2a6c2b3a63966e49199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c000dd8372f1283094ad85575a7b2df.png)
您最近一年使用:0次
名校
10 . 计算求值:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/527f85b8dbf7afc236d08e52160d70dc.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fc83e6bdd09a30e1e0c1fb26964c128.png)
您最近一年使用:0次