y=sin(x-π/4)+cos(x-π/4)为周期为多少得什么函数?急
问题描述:
y=sin(x-π/4)+cos(x-π/4)为周期为多少得什么函数?急
答
y=sin(x-π/4)+cos(x-π/4)
=√2sin(x-π/4+π/4)
=√2sinx
T=2π
是奇函数!