Which of the following is the valid differential equation x = a cos(αt + β)?
Posted: Wed Jul 13, 2022 8:08 pm
a) d2x/dt2 – αx = 0
b) d2x/dt2 + αx = 0
c) d2x/dt2 – α2x = 0
d) d2x/dt2 + α2x = 0
b) d2x/dt2 + αx = 0
c) d2x/dt2 – α2x = 0
d) d2x/dt2 + α2x = 0