设函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316016_ST/0.png)
,其中向量
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316016_ST/1.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316016_ST/2.png)
(1)若函数f(x)=1-
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316016_ST/3.png)
,且x
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316016_ST/4.png)
,求x;
(2)求函数y=f(x)的单调增区间.
考点分析:
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下列命题中,正确的是
①平面向量
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316015_ST/0.png)
与
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316015_ST/1.png)
的夹角为60°,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316015_ST/2.png)
=(2,0),|
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316015_ST/3.png)
|=1,则|
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316015_ST/4.png)
|=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316015_ST/5.png)
;
②已知
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316015_ST/6.png)
=(sinθ,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316015_ST/7.png)
),
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316015_ST/8.png)
=(1,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316015_ST/9.png)
)其中θ∈(π,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316015_ST/10.png)
)则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316015_ST/11.png)
;
③O是△ABC所在平面上一定点,动点P满足:
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316015_ST/12.png)
+λ(
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316015_ST/13.png)
+
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316015_ST/14.png)
),λ∈(0,+∞),则直线AP一定通过△ABC的内心.
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函数y=a
1-x(a>0,a≠1)的图象恒过定点A,若点A在直线mx+ny-1=0(mn>0)上,则
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316014_ST/0.png)
的最小值为
.
查看答案
已知函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316013_ST/0.png)
的部分图象如图所示,则f(-1)=
.
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若不等式|x-1|<a成立的充分条件是0<x<4,则实数a的取值范围是
.
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如图,函数y=f(x)的图象为折线ABC,设g (x)=f[f(x)],则函数y=g(x)的图象为( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316011_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316011_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316011_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102102066831678/SYS201311031021020668316011_ST/images3.png)
D.
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