Question

Qual é o valor de log três 72 - log três 12 - log 32

Answer 1

$Log_{3} 72 - Log_{3}12 - Log 32\\\\Log_{3} 72/12 - Log (8.4)\\\\Log_{3}6 - Log 2^{3} - Log 2^{2}\\\\Log_{3}6 - Log 2^{3} - Log 2^{2}\\\\Log_{3}6 - 3.Log 2 - 2.Log 2\\\\Log_{3}6 - 5.Log2\\\\Log_{3}3 + Log_{3}2 - 5Log2\\\\ 1 + Log_{3}2 - 5.Log2\\\\1 + Log3/Log2 - 5.Log2\\\\1,08 (aproximadamente)$