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Question
Express as a single logarithm:
log 3 + log 4 + log 5
Sum
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Solution
Using the logarithm rule:
log a + log b = log (a × b)
∴ log 3 + log 4 + log 5
= log (3 × 4 × 5)
= log (12 × 5)
= log 60
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