>
数学
>
函数y=2sin
(2x+
π
3
)
(-
π
6
<x<
π
6
)的值域______.
人气:300 ℃ 时间:2019-11-15 08:27:40
解答
∵-
π
6
<x<
π
6
,
∴0<2x+
π
3
<
2π
3
,
根据正弦函数的性质,则0<sin(2x+
π
3
)≤1,
∴0<2sin(2x+
π
3
)≤2
∴函数y=2sin
(2x+
π
3
)
(-
π
6
<x<
π
6
)的值域 (0,2].
故答案为:(0,2].
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