Question

7^log49 5 как решить

Answer 1

${7}^{ log_{49}5 } = {7}^{ log_{ {7}^{2} }5 } = {7 }^{ \frac{1}{2} log_{7}5 } = \\ = ( {7}^{ log_{7}(5) } ) ^{ \frac{1}{2} } = \sqrt{5}$