设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ|
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/13 18:16:35
设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ|
设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ|
设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ|
析:f(x)=sin(wx+φ)+cos(wx+φ)=√2sin(wx+φ+π/4)
f(-x)=f(x):知f(x)图像关于y轴对称,又w>0,所以,f(x)一定可以化简成f(x)=cos(wx)
这样就必须满足φ+π/4=kπ+π/2.φ=kπ+π/4,又知|φ|<π/2,所以只有φ= π/4
设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ|
设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ|
设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ|
设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ|
老师好:设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ|
设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ|
设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ|
设函数f(x)=sin(wx+t)(-π/2
设函数f(x)=sin(wx+t)(-π/2
设函数f(x)=sin(wx+g)+cos(wx+g) (w>0,|g|
设函数f(x)=sin(wx+q)+cos(wx+q)(w>0,q的绝对值
设函数f(x)=sin(wx+φ)(w>0,-π/2
函数f(x)=sin(wx+φ)(w>0,|φ|
函数f(x)=sin(wx+φ)(w>0,|φ|
函数f(X)=sin(wx+φ)(w>0,|φ|
已知函数f(x)=sin(wx+φ)(w
已知函数f(x)=sin(wx+φ)(w
已知函数f(x)=sin(wx+φ)(w