Nilai dari 2log 6 - 2log 15 + 2log 20 ?

Mata Pelajaran : Matematika Peminatan
Kelas : 10
Bab : 02 - Fungsi Logaritma



[tex] {}^{2} log(6) - {}^{2} log(15) + {}^{2} log(20) \\ = {}^{2} log( \frac{6 \times 20}{15} ) \\ = {}^{2} log( \frac{2 \times 20}{5} ) \\ = {}^{2} log(2 \times 4) \\ = {}^{2} log(8) \\ = {}^{2} log(2 {}^{3} ) \\ = 3. {}^{2} log(2) \\ = 3[/tex]