(1)A+1=3==>A=2
T/2=π/2==>T=π==>w=2
所以f(x)=2 sin(2x-π/6)+1
(2)A∈(0,π/2)
f(A/2)=2 sin(A-π/6)+1=2==>sin(A-π/6)=1/2==>A-π/6=π/6==>A=π/3
(1)A+1=3==>A=2
T/2=π/2==>T=π==>w=2
所以f(x)=2 sin(2x-π/6)+1
(2)A∈(0,π/2)
f(A/2)=2 sin(A-π/6)+1=2==>sin(A-π/6)=1/2==>A-π/6=π/6==>A=π/3