1.化简f(x)=cosx(asinx-cosx)+cos(π/2-x)cos(π/2-x).2.化简f(x)=4cosxsin(x+π/6)+1.
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 16:27:51
![1.化简f(x)=cosx(asinx-cosx)+cos(π/2-x)cos(π/2-x).2.化简f(x)=4cosxsin(x+π/6)+1.](/uploads/image/z/2832689-65-9.jpg?t=1.%E5%8C%96%E7%AE%80f%28x%29%3Dcosx%28asinx-cosx%29%2Bcos%EF%BC%88%CF%80%2F2-x%EF%BC%89cos%28%CF%80%2F2-x%29.2.%E5%8C%96%E7%AE%80f%28x%29%3D4cosxsin%28x%2B%CF%80%2F6%29%2B1.)
x)3{34
M
̼
]SSHqAHN W3BhRԧQ
76ԳI*ҧv6v=f&B
k3TR5AňrDBQ,c چFB@2 Qm#PIP lTUF6yv x=Ҥ
1.化简f(x)=cosx(asinx-cosx)+cos(π/2-x)cos(π/2-x).2.化简f(x)=4cosxsin(x+π/6)+1.
1.化简f(x)=cosx(asinx-cosx)+cos(π/2-x)cos(π/2-x).2.化简f(x)=4cosxsin(x+π/6)+1.
1.化简f(x)=cosx(asinx-cosx)+cos(π/2-x)cos(π/2-x).2.化简f(x)=4cosxsin(x+π/6)+1.
化简f(x)=cosx(asinx-cosx)+cos(π/2-x)cos(π/2-x).
=acosxsinx-cos^2x+sin^2x
=a/2sin2x-cos2x
2.化简f(x)=4cosxsin(x+π/6)+1.
=4cosx(√3/2sinx+1/2cosx)+1
=2√3sinxcosx+2cos^2x+1
=√3sin2x+cos2x+2
=2sin(2x+π/6)+2