Log28/25-log35/324+log325/432-log13/15=?
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Answer:
2 log ₁₀ 3
Explanation:
log 28/25 - log 35/324 + log 325/432 - log 13/15
(log 28/25 - log +35/324) + (log 325/432 - log 13/15)
log ((28/25) / (35/324))) + log ((325/432) / (13/15))
log (9072 / 875) + log(4875 / 5616)
log (1296 / 125) + log (125 / 144)
log (1296 / 125 * 125 / 144)
log (1296 / 144)
log (9)
log ₁₀ (3)²
2 log ₁₀ 3
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