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1.2log√2 + 2log√8 =
2log2^1/2 + 2log2^3/2 =
1/2 . 2log2 + 3/2 . 2log2 =
1/2 . 1 + 3/2 . 1 =
1/2 + 3/2 = 4/2 = 2
2.2log4√8 =
2log2^3/4 =
3/4 . 2log2 = 3/4
3.2log64 + 2log4 - 2log16
6 + 2 - 4 = 4
4.2log3 - 2log6 + 2log8
2log(3 x 8 : 6) = 2log4 = 2
5.log a^1/2 + log b^1/2 -1/2 log ab
1/2 log a + 1/2 log b - 1/2 log ab
1/2(log a + log b - log ab)
1/2(log a.b - log ab)
1/2.0 = 0