Matematika

Pertanyaan

jika 2log3=a. dan 3log5=b .maka5log20

1 Jawaban

  • ^5log20, misal ubah pd basis 2
    = ²log20/²log5
    = ²log(2².5)/²log5
    = (2.²log2 + ²log5)/²log5
    = (2 + ²log3.³log5)/(²log3.³log5)
    = (2 + ab)/(ab)

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