Simplify Log28192 – Log5625
Solution
= Log28192 – Log5625
= Log2213 –
Log554
= 13Log22 – 4Log55
because Logaan = nLogaa
= (13 x 1) – (4 x 1) because
Logaa =1
= 13 – 4
= 9
Hence
Log28192 – Log5625 = 6
TRY THIS…………..
NECTA
1995 QN 24b
Simplify Log232 – Log39.
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