Pertanyaan

Nilai dari 3 lo g 54 + 3 lo g 2 − 3 lo g 4 − 3 lo g 9 = ....

Nilai dari $^{3} lo g 54 +^{3} lo g 2 -^{3} lo g 4 -^{3} lo g 9 =$ ....

F. Pratama

Master Teacher

Mahasiswa/Alumni Universitas Putra Indonesia YPTK Padang

Jawaban terverifikasi

Pembahasan

Gunakan sifat-sifat logaritma, yaitu :

$log presuperscript a space straight a to the power of straight n equals straight n log presuperscript straight a space straight b plus log presuperscript straight a space straight c equals log presuperscript straight a space bc log presuperscript straight a space straight b minus log presuperscript straight a space straight c equals log presuperscript straight a straight b over straight c log presuperscript 3 space 54 plus log presuperscript 3 space 2 minus log presuperscript 3 space 4 minus log presuperscript 3 space 9 equals log presuperscript 3 space fraction numerator 54.2 over denominator 9.4 end fraction equals log presuperscript 3 6 over 2 equals log presuperscript 3 space 3 equals 1 space left parenthesis straight A right parenthesis$