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= 2,64 + 1,71 + 2,44
= 6,79 menjadi 6,80
2.) 5 log 250- 5 log 6 + 5 log 12- 5 log 20
= 11,98 - 3,89 + 5,39 - 6,50
= 6,98 menjadi 7
3.) 2 log 64+ √2 log 8- 8 log 8√2- 4 log 1/32√2
= 3,61 + 1,27 - 10,21 - 0
= -5,33
4.) 3 log 1/9 + 1/3 log 27 - 2x 9 log √3 + √3 log 9 √3
= 0 + 0,23-4,29+2.86
= -1,2.
semoga benar yaa ....
maaf jika salah ....