LOG J1

 

If log 2= 0.3010; find the value of log 1600000 without using tables.

 

solution

 

=log1600000

 

=log(16 x 100,000)

 

=log16 + log100,000

 

=log2⁴ + log10⁵

 

=4log2 + 5log10

 

=4(0.3010) + (5 x 1)  [since log10=1 and Log3=0.3010]

 

=(0.6020) +  5

 

=5.6020

 

Hence log1600,000=5.6020 answer.

 

 

TRY THIS……………

 

 

If log 2= 0.3010; find the value of log 40,000,000 without using tables.