作业帮化简 f(x)= -sin(2x+π/4)+cos(2x+π/4)
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/12 15:19:28
化简 f(x)= -sin(2x+π/4)+cos(2x+π/4)
化简 f(x)= -sin(2x+π/4)+cos(2x+π/4)
化简 f(x)= -sin(2x+π/4)+cos(2x+π/4)
f(x)= -sin(2x+π/4)+cos(2x+π/4)
=-√2[√2/2*sin(2x+π/4)-√2/2*cos(2x+π/4)]
=-√2sin(2x+π/4-π/4)
=-√2sin2x