A.y=sin(2x+
) B.y=sin(2x-
)
C.y=sin(2x+
) D.y=sin(2x-
)
A.y=sin(2x+
) B.y=sin(2x-
)
C.y=sin(2x+
) D.y=sin(2x-
)
解析:y=sin2x向左平移
个单位所得解析式为y=sin2(x+
),即y=sin(2x+
).
答案:C