两分振动方程为,x1=8cos(πt-2π/3),x2=5cos(πt-2π/3),则合振动方程为()


两分振动方程为,x1=8cos(πt-2π/3),x2=5cos(πt-2π/3),则合振动方程为()

A.x=13cos(πt-π/3)

B.x=3cos(πt-π/3)

C.x=3cos(πt-2π/3)

D.x=13cos(πt-2π/3)

正确答案:A


Tag:方程 时间:2023-01-06 15:30:41