Question

sendo log 2=0,301 e log 3=0,477, calcule log 900

Answer 1

log 900

= log (9 x 4 x 25)

= log 9 + log 4 + log 25

= log 3^2 + log 2^2 + log 5^2

= 2log 3 + 2log 2 + 2 log 5

= 2(0,477) + 2(0,301) + 2(0,699)

= 0,954 + 0,602 + 1,398

= 2,954
                                           log 900 = 2,954