Question

dados log2 = 0,3010 e log3= 0,4771, calcule:
A) log 1,8
b) log 8000

Answer 1

a) log 1,8
log 1,8 = log 18/10
log 18 - log 10
log 3.3.2 - log 10
log 3 + log 3 + log 2 - log 10
0,4771 + 0,4771 + 0,3010 - 1

b) log 8000
log 8000 = log 8.1000
log 8 + log 1000
log 2.2.2 + log 1000
3. log 2 + log 1000
3. 0,3010 + 3