问题
填空题
函数y=2sin2x+2
|
答案
函数y=2sin2x+2
sinxcosx3
=1-cos2x+
sin2x3
=1-2(
cos2x-1 2
sin2x)3 2
=1-2sin(
-2x)π 6
=1+2sin(2x-
),π 6
∵ω=2,∴T=
=π.2π 2
故答案为:π
函数y=2sin2x+2
|
函数y=2sin2x+2
sinxcosx3
=1-cos2x+
sin2x3
=1-2(
cos2x-1 2
sin2x)3 2
=1-2sin(
-2x)π 6
=1+2sin(2x-
),π 6
∵ω=2,∴T=
=π.2π 2
故答案为:π