函数y=Asin（ωx+φ）（ A＞0，ω＞0，|φ|＜ π2 ）的部分图象如图所示，则该函数的表达式为_刷题宝

题干

函数y=Asin（ωx+φ）（ A＞0，ω＞0，|φ|＜

π

2

）的部分图象如图所示，则该函数的表达式为（）

A： $y = 2 \sin (2 x + \frac{5 π}{6})$

B： $y = 2 \sin (2 x - \frac{5 π}{6})$

C： $y = 2 \sin (2 x + \frac{π}{6})$

D： $y = 2 \sin (2 x - \frac{π}{6})$

上一题下一题 0.0难度选择题更新时间:2018-10-04 03:48:08

答案(点此获取答案解析）

C

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