Thursday 21 December 2017

LOGARITHMS 3


Simplify Log2 8192 – Log5625

Solution

= Log2 8192 – Log5625

= Log2213 – Log55

= 13Log22 – 4Log55   because Logaan =  nLogaa

= (13 x 1) – (4 x 1)      because Logaa =1

= 13 – 4

= 9

Hence Log2 8192 – Log5625 = 9 

TRY THIS…………..

NECTA 1995 QN 24b



Simplify Log232 – Log39.

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