Solve without using tables log5 62 5 - log5 fra... - JAMB Mathematics 1993 Question
Solve without using tables log5(62.5) - log5(\(\frac{1}{2}\))
A
3
B
4
C
5
D
8
correct option: a
log5(62.5) - log5(\(\frac{1}{2}\))
= log5\(\frac{(62.5)}{\frac{1}{2}}\) - log5(2 x 62.5)
= log5(125)
= log553 - 3log55
= 3
= log5\(\frac{(62.5)}{\frac{1}{2}}\) - log5(2 x 62.5)
= log5(125)
= log553 - 3log55
= 3
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