A.uFM(t)=UCcos(ωCt+mfsinΩt)
B.uFM(t)=UCcos(ωCt-mfcosΩt)
C.uFM(t)=UC(1+mfsinΩt)cosωCt
D.uFM(t)=kUΩUCcosωCtsinΩt
A.haven't
B.mustn't
C.don't
D.aren't
A.EAB(t,t0)=EAB(t)-EBA(t0)
B.EAB(t,t0)=EAB(t0)-EAB(t)
C.EAB(t,t0)=EAB(t)+EBA(t0)
D.EAB(t)=EAB(t,t0)-EAB(t,t0)