Matematika

Pertanyaan

Jika log 3=0,477 dan log5 =0,699 maka nilai log 225

2 Jawaban

  • Log 225= 2(log 3 + log5)=2(0.477+0.699)=2x1.176=2352
  • log225 = log(9 x 25)
                = log9 + log25
                = log3² + log5²
                = 2. log3 + 2. log5
                = 2 . 0,477 + 2. 0,699
                = 2 (0,477 + 0,699)
                = 2 x 1,176
                = 2,352

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