满分5 >
高中数学试题 >
由曲线xy=1,直线y=x,y=3所围成的平面图形的面积为( ) A. B.2-...
由曲线xy=1,直线y=x,y=3所围成的平面图形的面积为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439533811978/SYS201311031024395338119003_ST/0.png)
B.2-ln3
C.4+ln3
D.4-ln3
考点分析:
相关试题推荐
定义行列式运算
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439533811978/SYS201311031024395338119002_ST/0.png)
=a
1a
4-a
2a
3.将函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439533811978/SYS201311031024395338119002_ST/1.png)
的图象向左平移
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439533811978/SYS201311031024395338119002_ST/2.png)
个单位,以下是所得函数图象的一个对称中心是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439533811978/SYS201311031024395338119002_ST/3.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439533811978/SYS201311031024395338119002_ST/4.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439533811978/SYS201311031024395338119002_ST/5.png)
D.
查看答案
下列函数中,在其定义域内既是奇函数又是减函数的是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439533811978/SYS201311031024395338119001_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439533811978/SYS201311031024395338119001_ST/1.png)
C.y=tan
D.
查看答案
定义集合运算:A⊙B={z︳z=xy(x+y),x∈A,y∈B},设集合A={0,1},B={2,3},则集合A⊙B的所有元素之和为( )
A.0
B.6
C.12
D.18
查看答案
选修4-5:不等式选讲
已知函数f(x)=|2x+1|,g(x)=|x|+a-1
(1)当a=1,解不等式f(x)≥g(x);
(2)若存在x∈R,使得f(x)≤g(x)成立,求实数a的取值范围.
查看答案
选修4-4:坐标系与参数方程
在直角坐标系xoy中,圆C的参数方程为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439533561947/SYS201311031024395335619022_ST/0.png)
以O为极点,x轴的非负半轴为极轴,并取相同的长度单位建立极坐标系,直线l的极坐标方程
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102439533561947/SYS201311031024395335619022_ST/1.png)
.
(I)求圆心的极坐标.
(II)若圆C上点到直线l的最大距离为3,求r的值.
查看答案