Evaluate log 10 5 log 10 20 - WAEC Mathematics 2001 Question
Evaluate \(log_{10}5 + log_{10}20\)
A
2
B
3
C
4
D
5
correct option: a
\(log_{10}5 + log_{10}20\
log_{10}[5\times 20]\
log_{10}100\
log_{10}10^2\
2log_{10}10=2\)
log_{10}[5\times 20]\
log_{10}100\
log_{10}10^2\
2log_{10}10=2\)
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