Question

Dados log 2 = 0,3010 e log 3 = 0,4771, calcule log 72
Me ajudem !

Answer 1

72 = 2^3 * 3^2
log 72 = log (2^3 * 3^2) = log (2^3) + log (3^2) = 3*log 2 + 2*log 3
3*0,3010 + 2*0,4771 = 0,9030 + 0,9542 = 1,8572

log 72 = 1,8572