1.f(x)=(sinwx+coswx)^2+2cos^2wx
=1+sin2wx+1+cos2wx
=2+根号2sin(2wx+π/4)
T=2π/2w=2π/3,w=3/2
2.g(x)=2+根号2sin[3(x-π/2)+π/4]
=2+根号2sin(3x-5π/4)
令-π/2+2Kπ
1.f(x)=(sinwx+coswx)^2+2cos^2wx
=1+sin2wx+1+cos2wx
=2+根号2sin(2wx+π/4)
T=2π/2w=2π/3,w=3/2
2.g(x)=2+根号2sin[3(x-π/2)+π/4]
=2+根号2sin(3x-5π/4)
令-π/2+2Kπ