Question

Apa jawaban dari ini ??
1. 3 log 27 + 3 log 6 - 3 log 2 = ...
2. 2 log 48 + 2 log akar 1/16 - 2 log 3 = ...
3. 5 log 1/49 x 7 log 3 x 9 log 125 = ...
4. 2 x 2 log 8 + 2 log akar 2 - 3 x 2 log 1/4 = ...

Answer 1

1. 3 log (27 x 6) / 2 = 3 log 81 = 4
2. 2 log (48 x akar 1/4) / 3 = 2 log 4 = 2
3. 5 log 7^-2 x 7 log 3 x 3^2 log 5^3
= -1/2 x 3/2 (5 log 7 x 7 log 3 x 3 log 5)
= -3/4 (5 log 5)
= -3/4
4. 2 x 2 log 2^3 + 2 log 2^1/2 - 3 x 2 log 2^-2
= 2x3 2 log 2 + 1/2 2 log 2 - 3x-2 2 log 2
= 6 2 log 2 + 1/2 2 log 2 - (-6) 2 log 2
= 6 . 1 + 1/2 . 1 + 6 .1
= 6 + 1/2 + 6
= 25/2