Question

Questão na foto, valendo 50 pontos.

Answer 1

$log_{7} 3 + log_{7} 4 + log_{7} \frac{7}{6} - log_{7} 2$

$log_{7} (3*4) + log_{7} \frac{7}{6} - log_{7} 2$

$log_{7} (12) + log_{7} \frac{7}{6} - log_{7} 2$

$log_{7} (12* \frac{7}{6} ) - log_{7} 2$

$log_{7} (14) - log_{7} 2$

$log_{7} \frac{14}{2}$

$log_{7} 7$

1

Answer 2

Vamos la

3*4*7/6/2 = 12*7/12 = 7

log7(7) = 1