f(x)=Asin(wx+&)如果函数是偶函数,求&的取值

问题描述:

f(x)=Asin(wx+&)如果函数是偶函数,求&的取值

f(x)=Asin(wx+&)的对称轴为wx+&=kπ+π/2
现在f(x)为偶函数,即x=0是其一条对称轴
带入得&=kπ+π/2