LOGARITHMS 1D

If log 2= 0.3010; find the value of log 50,000 without using tables.

solution

=log50,000

=log(100,000÷ 2)

=log100,000 – log2

=log10⁵ – log2

=5log10 – log2

=(5x1) – (0.3010)

=5 – 0.3010)

=4.699

Hence log50,000=4.699

TRY THIS……………

If log 2= 0.3010; find the value of log 5,000 without using tables.