Question

Помогите посчитать логарифмы. 50баллов

Answer 1

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Answer 2

${6}^{ - log_{6}(4) } - \frac{ log_{ \frac{1}{5} }(25) }{ log_{ \frac{1}{5} }(5) } = {6}^{ log_{6}( {4}^{ - 1} ) } - \frac{ - log_{5}( {5}^{2} ) }{ - log_{5}(5) } = \\ = \frac{1}{4} - 2 = - \frac{7}{4} = - 1.75$