Saturday 25 March 2017

LOGARITHMS 1


Evaluate Log10000 +  log 0.001 -  log 0.00000001

Solution

= Log10000 +  log 0.001 -  log 0.00000001

= Log104 +  log 10-3 – log 10-8

= 4Log10 + (-3 log 10) – (-8log 10)

= (4x1) + (-3x1) - (-8x1)

=4 + (-3) – (-8)

= 4 – 3 + 8

=9


Hence Log10000 +  log 0.001-  log 0.00000001 = 9


TRY THIS……………………… 



Evaluate Log100 +  log 0.0000001 -  log 0.00000001

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