已知函数f(x)=Asin(wx+φ)(A>0,w>0,│φ│

最大A=2
半周期T/2=11π/12-5π/12=π/2
T=2π/w=π
w=2
x=0则f(0)=2sin(2*0+φ)=1
sinφ=1/2
φ=π/6
f(x)=2sin(2x+π/6)
递增则2kπ-π/2