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4 \log 4 + 2 \log 5 - \log 15 |
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Answer» Use log a + log b = log(ab)log a - log b = log(a/b) 4 log4 + 2 log 5 - log 15 log 4⁴ + log 5² - log 15 log (256 × 25)/15 log (256×5)/3 log(1,280/3) |
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