函数y=cos^2(3x+π/6)-sin^2(3x+π/6)化简

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/30 13:10:40
函数y=cos^2(3x+π/6)-sin^2(3x+π/6)化简

函数y=cos^2(3x+π/6)-sin^2(3x+π/6)化简
函数y=cos^2(3x+π/6)-sin^2(3x+π/6)化简

函数y=cos^2(3x+π/6)-sin^2(3x+π/6)化简
y=cos^2(3x+π/6)-sin^2(3x+π/6)
=cos[2(3x+π/6)]
=cos(6x+π/3)

y=cos(6x+π/3)