已知正弦曲线y=Asin(ωx+φ),(A>0,ω>0)上一个最高点的坐标是(2 发布时间:2017-04-22 08:23 │ 来源:www.tikuol.com 题型:选择题 问题: 已知正弦曲线y=Asin(ωx+φ),(A>0,ω>0)上一个最高点的坐标是(2,3),由这个最高点到相邻的最低点,曲线交x轴于(6,0)点,则这条曲线的解析式是( )A.y=3sin(π8x+π4)B.y=3sin(π8x-2)C.y=3sin(π8x+2)D.y=3sin(π8x-π4)
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