nilai daru 3log7 x 7log81
Matematika
alfianaekaputri
Pertanyaan
nilai daru 3log7 x 7log81
2 Jawaban
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1. Jawaban andri77
sifat logaritma:
alogb x blogc = alogc
alogb^n = n . alogb
jawab:
=3log7 x 7log81
= 3log81
= 3log3^4
= 4. 3log3
= 4 . 1
= 4
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2. Jawaban khim3
³loɡ7.⁷loɡ 81 (coret basis 7 dɡn 7)
=³loɡ81
=³loɡ 3⁴
=4.³loɡ 3
=4