Question

Log 3 = 0,4771 e log 4 = 0,6021, calcule:

Log 3/4
log v3
log 1/300

Answer 1

Log 3 = 0,4771 e log 4 = 0,6021

a)
Log 3/4=log3 -log4 = 0,4771-0,6021 = -0,125

b)

log v3= log 3^(1/2)=(1/2).log 3=(1/2).0,4771=0,23855

c)

log 1/300= log 1-log 300 = log1-log(3.100)=log1-log3+log 100=0-0,4771-2=-2,4771

Answer 2

Log 3 = 0,4771 e log 4 = 0,6021,
Log 3/4 

Log3 - Log4 = 0,4771 - 0,6021 ==> 0,1250

log v3 

 lOG 3^1/2 =  1log 3 = 1.0,4771  ==> 0,4771 ou 0,23855
                       2               2                    2 
log 1/300

Log 1 - Log 300 ==> Log 1 - Log(3.10²)

Log1 - Log3 - Log10²
    0 - 0,4771 - 2  

      - 2,4771

    


Log 1  = x ==> 10^x = 1 ==> 10^x = 10^0 ==> x = 0
     10

Log 10 ==> Log  10² = x ==> 10^x = 10^2 ==> x = 2 
       10                10