Sunday 30 June 2013

LOGARITHMS - 3


Evaluate Log10000000 +  log 0.001

Solution

= Log10000000 +  log 0.001

= Log107 +  log 10-3
= 7Log10 +  (-3log 10)
= (7x1) + (-3x1)
=7 + (-3)
= 4


Hence Log10000000 +  log 0.001 = 4

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