Jawabanmu

2014-01-28T20:53:52+07:00
2014-01-28T20:55:15+07:00
T = 1/2 (n + 1)
t = n/2 + 1/2
n/2 = t - 1/2
n = (t.2) - (1/2.2)
n = 2t -1