Matematika

Pertanyaan

Diketahui log 2 = 0,301 ; log 3 = 0,477 ; dan log 5= 0,699 tentukan nilai dari log 0,6, log 20, log 90

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  • LogAritMa

    log 2 = 0,301
    log 3 = 0,477
    log 5 = 0,699

    log 0,6
    = log (2 × 3/10)
    = log 2 + log 3 - log 10
    = 0,301 + 0,477 - 1
    = -0,222

    log 20
    = log (2 × 10)
    = log 2 + log 10
    = 0,301 + 1
    = 1,301

    log 90
    = log (3² × 10)
    = 2 log 3 + log 10
    = 2 × 0,477 + 1
    = 1,954

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