Question

Qual é a resposta ? Com cálculo!

Answer 1

2*log(2)+2*log(20)-2*log(200)-2*log(2000)
log(4) + log(400) -log(40000) -log(4000000)
log(4*400) -log(40000/4000000)
log(4*400/40000 * 1/4000000)
log(4/100 * 1/4000000)
log(1/100000000) = x

10ˣ = 1/100000000
10 = 10⁻⁸

x = -8

a)