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МатематикаВопрос:
18. log0.5(7) * log7(2)
Ответ:
log0.5(7) * log7(2) = log(1/2)(7) * log7(2) = log(2^(-1))(7) * log7(2) = -log2(7) * log7(2) = -log2(7) * (1/log2(7)) = -1
Ответ: -1
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