3^9 log 5= (3 pangkat 9 log 5)

[tex] {3}^{ log_{9}(5) } \\ = {3}^{ log_{ {3}^{2} }(5) } \\ = {3}^{ log_{3}( {5}^{ \frac{1}{2} } ) } \\ = {5}^{ \frac{1}{2} } \\ = \sqrt{5} [/tex]