Jawabanmu

2014-04-01T19:38:43+07:00
Dik : T = 2/30 sekon =0.066 s Dic : f Jwb : f = 1/T =1/0.066 =15.151 Hz
2014-04-01T19:38:48+07:00
T = 1/f
f = 1/T
  = 1/ 2/30
  = 30/2
  = 15 Hz