Question

Помогите посчитать логарифмы. 50баллов

Answer 1

.......................

Answer 2

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