函数y=|5sin(2x+π/3)|的最小正周期为?
问题描述:
函数y=|5sin(2x+π/3)|的最小正周期为?
答
y=5*√[sin(2x+π/3)]^2=5*√[1-2sin(4x+2π/3)]
所以,最小正周期T=2π/4=π/2.