(log7 3 + log7 9)...

иришка276 @иришка276

October 2021 1 3 Report

(3log7 2 - log7 24) / (log7 3 + log7 9)

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MizoriesKun (3log₇ 2 - log₇ 24) / (log₇ 3 + log₇ 9) =(log₇ 2³/ 24) / (log₇ 3* 9) =

lg1/3 lg27 lg1/3 lg7
= (log₇1/3) / (log₇ 27 ) = ---------- : --------- = ----------- * --------- =
lg7 lg7 lg7 lg27
lg1/3
= ---------- = Log ₂₇ 1/3 = Log ₃³ 3⁻¹ =1/3 *(-1)Log₃ 3= -1/3
lg27

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