LOGARITHMS 11

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 50,000,000 without using tables.