Evaluate \(log_{10}5 + log_{10}20\)

  • A 2
  • B 3
  • C 4
  • D 5
waec 2001mathematics

The correct answer is A. 2

\(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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