Nilai dari ³log 81+³log 1_27-³log√243

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



[tex] {}^{3} log(81) + {}^{3} log( \frac{1}{27} ) - {}^{3} log( \sqrt{243} ) \\ = {}^{3} log( \frac{81 \times \frac{1}{27} }{ \sqrt{243} } ) \\ = {}^{3} log( \frac{3}{9 \sqrt{3} } ) \\ = {}^{3} log(3 {}^{ - \frac{3}{2} } ) \\ = - \frac{3}{2} \\ [/tex]
≈ -1 ½

Atau

≈ - 1,5