Matematika

Pertanyaan

Ada yang tau prinsip log? Aku susah banget ngertiinya mohon bantuannya :(

1 Jawaban

  • 1. alog (c x d) = alog c + alog d
    contoh: 2log (8) = 2log (2 x 4) = 2log 2 + 2log 4 = 1 + 2 = 3
    2. alog (c : d) = alog c - alog d
    contoh: 3log (9) = 3log (27 : 3) = 3log 27 - 3log 3 = 3 - 1 = 2
    3. alog cd = d x (alog c)
    contoh: 2log 28 = 8 x (2log 2) = 8 x 1 = 8
    4. (alog b)(blog c) = alog c
    contoh: (2log 65)(65log 8 ) = 2log 8 = 3
    5. (alog b) : (alog c) = clog b
    contoh: (7log 64) : (7log 2) = 2log 64 = 6


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