函数y=2sinx(π/3

函数y=2sinx(π/3
函数y=2sinx(π/3

函数y=2sinx(π/3
y=2sinx,
因为：π/3≤x＜5π/6.
所以：y＞0
π/2∈[π/3,5π/6)
sin(π/2)=1
sin(π/3)=(√3)/2＜sin(5π/6)＜sin(π/2)=1
所以：y=2sinx的值域是[√3,2]
sin(5π/6)
π/2∈[π/3,5π/6)

1<=y<2

[1,2]