设函数f(x)=sin(wx+φ)(w>0,-π/2
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 23:10:05
![设函数f(x)=sin(wx+φ)(w>0,-π/2](/uploads/image/z/2790717-69-7.jpg?t=%E8%AE%BE%E5%87%BD%E6%95%B0f%EF%BC%88x%EF%BC%89%3Dsin%EF%BC%88wx%2B%CF%86%EF%BC%89%EF%BC%88w%3E0%2C-%CF%80%2F2)
设函数f(x)=sin(wx+φ)(w>0,-π/2
设函数f(x)=sin(wx+φ)(w>0,-π/2
设函数f(x)=sin(wx+φ)(w>0,-π/2
就以前两个为条件
T=2π/w=π
w=2
f(x)=sin(2x+φ)
sinx的对称轴就是取最值的地方
即sin(2x+φ)=±1
2x+φ=kπ+π/2
x=-π/6
所以φ=kπ+5π/6
由φ范围,取k=-1
φ=-π/6
所以f(x)=sin(x-π/6)
而sinx的对称中心是和x轴交点
即sin(x-π/6)=0
x-π/6=kπ
x=kπ+π/6
不妨取k=0
所以f(x)的一个对称中心是(π/6,0)
设函数f(x)=sin(wx+φ)(w>0,-π/2
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+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
若函数f(x)=sin(wx+φ)(w>0,φ的绝对值
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|
三角函数,求详解已知函数f(x)=sin(wx+φ)(w>0,0
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