最好发图哟最好发图哟
最好发图哟解析式y=4sin(x+π/3)同一周期内x=7π/6,有最大值x=π/6,有最小值∴T/2=7π/6-π/6=πT=2πw=2π/T=1最大值=4∴A=4x=π/6时sin(π/6+φ)=1∵|φ|