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If log 10 2 0 3010 and log 10 3 0 4771 evaluate... - JAMB Mathematics 2020 Question

If log\(_{10}\)2 = 0.3010 and log\(_{10}\)3 = 0.4771, evaluate log\(_{10}\)4.5 without using the logarithm tables.

A

0.3010

B

0.4771

C

0.6532

D

0.9542

correct option: c

Given that:

log\(_{10}\)2 = 0.3010

log\(_{10}\)3 = 04771

Then,

log\(_{10} 4.5 = log_{10}\) (\(\frac{3 \times 3}{2}\))

log\(_{10}\) 3 + log\(_{10}\) 3 - log\(_{10}\)2 = 0.4471 + 0.771 - 0.3010

= 0.6532 Ans.

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