已知f(x)=2sin(2/3πx+π/6).若函数f(x)满足方程f(x)=a (1
问题描述:
已知f(x)=2sin(2/3πx+π/6).若函数f(x)满足方程f(x)=a (1
2/3πx=2πx/3
答
f(x)=2sin(2/3πx+π/6).容易求对称轴 即2πx/3+π/6=π/2+2kπ
f(x)=a(1