3 log 81 3 log 243 July 8, 2019 16 32 64 128 3 log 81 3 log 243 3 log 27 3 log 81 – 2. 3 log 27 + 3 log 243 3 log 81 3 log 243 dikurang 3 log 27 Log81 3 Log 81 base 3 81 log 3 2