Jika di ketahui log 2 = 0,3010 dan log 3 = 0,4771 tentukan logaritma log 90
Matematika
Wulaan64
Pertanyaan
Jika di ketahui log 2 = 0,3010 dan log 3 = 0,4771 tentukan logaritma log 90
2 Jawaban
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1. Jawaban newwiguna
log 90
= log (10x9)
= log 10 + log 9
= log 10 + log 3²
= log 10 + 2. log 3
= 1 + 2 (0,4771)
= 1 + 0,9542
= 1,9542 -
2. Jawaban Sutr1sn0
log 2 = 0,3010
log 3 = 0,4771
log 90
= log (3^2 × 10)
= log 3^2 + log 10
= 2 log 3 + log 10
= 2(0,4771) + 1
= 0,9542 + 1
= 1,9542