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Messages - riani

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Matematika / Re: soal logaritma
« on: June 28, 2016, 09:24:13 PM »
@joniwjy
ini d pernah w pelajari wkt kelas x
63log 14= (3log14)/(3log63)         3 nya ambil dari angka paling sering muncul
= (3log 2 + 3log7)/(3log7 + 3log9) angka 14= 2*7 dan 63 9*7
=(1/a + 1/b)/(1/b + 3log32)     2log3=a maka 3log 2 = 1/a
=(1/a + 1/b)/(1/b + 2)    ruas atas dan bawah dikali ab
=(b + a)/(a + 2ab)

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