函数y=3cos(2x+π/4)的周期为_____.

问题描述:

函数y=3cos(2x+π/4)的周期为_____.
函数y=3cos(2x+π/4)的周期为_____.
y=2sin1/2(x+π/3)周期_____.
y=2cos(π/3-wx)(w>0)最小正周期4π则w=_____.
f(x)=2cos(kx/2+π/3)-5最小正周期不大于2,则正整数k最小值_____.
 

函数y=3cos(2x+π/4)的周期为_π_.
y=2sin1/2(x+π/3)周期_4π_.
y=2cos(π/3-wx)(w>0)最小正周期4π则w=_±1/2_.
f(x)=2cos(kx/2+π/3)-5最小正周期不大于2,则正整数k最小值_3_.