A、u<m>subm>>PMm>subm>>(t)=U<m>subm>>Cm>subm>>cos(ω<m>subm>>Cm>subm>>t+m<m>subm>>fm>subm>>sinΩt) B、u<m>subm>>PMm>subm>>(t)=U<m>subm>>Cm>subm>>cos(ω<m>subm>>Cm>subm>>t+m<m>subm>>pm>subm>>cosΩt) C、u<m>subm>>PMm>subm>>(t)=U<m>subm>>Cm>subm>>(1+m<m>subm>>pm>subm>>cosΩt)cosω<m>subm>>Cm>subm>>t D、u<m>subm>>PMm>subm>>(t)=kU<m>subm>>Ωm>subm>>U<m>subm>>Cm>subm>>cosω<m>subm>>Cm>subm>>tcosΩt