Jawabanmu

2014-09-08T20:22:20+07:00
A) 2log15 = 2log (3.5) = 2log3 + 2log5 = a + b
b) 4log75 =  2^{2} log(3.5.5)
              = 2log(3.5.5) ^{2}
              = 2 . 2log3 + 2log5 + 2log5 = 2 (a+b+b)
              = 2a+2b+2b = 2a+4b
d) 2log5 = 2log3 . 3log 5 => 2log5
            = a . b => ab
    jadi, 2log5 = ab
lainnya males ngitung nih:3
sekalian dong. aku masih bingung nh X_X
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