Friday, 3 February 2017

LOGARITHMS 1E


Simplify Log21024 – Log5625

Solution

= Log21024 – Log5625

= Log2210 – Log55

= 10Log22 – 4Log55   because Logaan =  nLogaa

= (10 x 1) – (4 x 1)      because Logaa =1

= 10 – 4

= 6

Hence Log21024 – Log5625 = 6 

TRY THIS…………..

NECTA 1995 QN 24b


Simplify Log232 – Log39.

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