Matematika

Pertanyaan

Diketahui log 2 = 0,3010 ,log 3 = 0,4771, log 7 = 0,8451 tentukan log 10,5

1 Jawaban

  • log 2 = 0,301
    log 3 = 0,4771
    log 7 = 0,8451

    log 10,5
    = log (21/2)
    = log (3 × 7) - log 2
    = log 3 + log 7 - log 2
    = 0,4771 + 0,8451 - 0,301
    = 1,0212

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