由图知,A=1x=-1时,-ω+ψ=0x=3时,3ω+ψ=π∴ω=π/4,ψ=π/4验证：x=1时,y=sin[(π/4)+(π/4)]=sin(π/2)=1x=5时,y=sin[(π/4)*5+(π/4)]=sin(3π/2)=1∴f(x)=sin[(π/4)x+(π/4)]通过上述计算,知f(-1)=0,f(1)=1,f(...