Question

considerando os valores logo 2 = 0,3010 e log 3 =0,4771 calcule a) log 3000 b) log 0,002 c) log raiz quadrada de 3 (d logo de 20 e) log 48

Answer 1

a) log 3000

log 300 . 10
log 300 + log 10
log 3 . 100 + log 10
log 3 + log 100 + log10
0,4771 + 2 + 1 = 3,4771


b) log 0,002
log ( 2/1000)
log 2 - log 1000 
log 2 - log 10 .100
log 2 - log 10 + log 100 
0,3010 - 1 + 2 = 1,301

c) log √3
log 3 * 1/2
1/2 . log 3
1/2 . 0,4771 = 0,23855


d) log 20
log 10 . log 2 
log 10 + log 2
1 + 0,3010 = 1,301