三角函数周期是有公式的,y=Asin(ωx+σ)和y=Acos(ωx+σ)周期都是T=2π/ω
y=tan(ωx+σ)周期是T=π/ω
(1)T=2π/ω=2π/(1/2)=4π
(2)T=2π/ω=2π/1=2π
(3)T=2π/ω=2π/(2/3)=3π
求下列函数的周期(1)y=2sin1/2x (2)y=cos(x+π/3) (3)y=2sin(2/3x-π/4)
求下列函数的周期(1)y=2sin1/2x (2)y=cos(x+π/3) (3)y=2sin(2/3x-π/4)
数学人气:327 ℃时间:2019-08-19 21:05:11
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