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

Evaluate (log_{10}5 + log_{10}20)
  • A.
    2
  • B.
    3
  • C.
    4
  • D.
    5
Correct Answer: Option A
Explanation

(log_{10}5 + log_{10}20\
log_{10}[5times 20]\
log_{10}100\
log_{10}10^2\
2log_{10}10=2)

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