LOGARITHMS 1

Evaluate Log100,000 -  log 0.001 -  log 0.0001

Solution

= Log100,000  -  log 0.001 -  log 0.0001

= Log10⁵ -  log 10^-3 – log 10^-4

= 5Log10 - (-3 log 10) – (-4log 10)

= (5x1) - (-3x1) - (-8x1)

=5 - (-3) – (-4)

= 5 + 3 + 4

=12

  

Hence Log100,000 -  log 0.001-  log 0.0001 = 12

TRY THIS……………………… 

Evaluate Log100,000 -  log 0.000001 -  log 0.00000001