Matematika

Pertanyaan

diketahui ²log5 = x dan ²log3 = y. nilai ²log 300¾=...

1 Jawaban

  • 2'log 5 = x
    2'log 3 = y

    2'log 300^3/4
    = 2'log (3^3/4 . 100^3/4)
    = 2'log 3^3/4 + 2'log 100^3/4
    = 3/4 . 2'log 3 + 3/4 . 2'log (2^2 . 5^2)
    = 3/4 y + 3/4 (2 + 2x)
    = 3/2 x + 3/4 y + 3/2

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