Evaluate \(log_{10}5 + log_{10}20\)
MATHEMATICS
WAEC 2001
Evaluate \(log_{10}5 + log_{10}20\)
- A. 2
- B. 3
- C. 4
- D. 5
Correct Answer: A. 2
Explanation
\(log_{10}5 + log_{10}20\\
log_{10}[5\times 20]\\
log_{10}100\\
log_{10}10^2\\
2log_{10}10=2\)
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