Jawabanmu

2014-09-03T13:06:01+07:00
A.  = 3.(6^1.6^-1 - 6^-1 . 6^0)
     = 3(6.1/6 - 1/6.1)
     = 3(1-1/6)
     = 3(5/6)
     = 15/6

B. = 1/3+1/3^3+1/3^5
    = 1/3+1/27+1/243 = 91/243