Jika log 3=2a log 2.2=3b berapa nilai log 72
Matematika
putrisetiya
Pertanyaan
Jika log 3=2a log 2.2=3b berapa nilai log 72
1 Jawaban
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1. Jawaban alfariz8
log 2.2=3b
log2² =3b
2log 2=3b
log 2=3b/2
log 72=log 3².2³
=log3² +log 2³
=2log3 +3log 2
=2.2a +3. 3b/2
=4a +9b/2