已知函数f(x)=x
2+2xsinθ-1,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101230856715879532/SYS201311012308567158795016_ST/0.png)
(1)当
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101230856715879532/SYS201311012308567158795016_ST/1.png)
时,求f(x)的最大值和最小值;
(2)若f(x)在
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101230856715879532/SYS201311012308567158795016_ST/2.png)
上是单调增函数,且θ∈[0,2π),求θ的取值范围.
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