三角函数周期怎么算
f(x)=sin(ωx+φ)T=2π/|ω|f(x)=cos(ωx+φ)T=2π/|ω|f(x)=tan(ωx+φ)T=π/|ω|f(x)=cot(ωx+φ)T=π/|ω|f(x)=sec(ωx+φ)T=2π/|ω|f(x)=csc(ωx+φ)T=2π/|ω|