Question

Find the value of a, if log3(1/243)=-a

Answer 1

$= > log_{3}( \frac{1}{243} ) = - a \\ = > log_{3}( \frac{1}{ {3}^{5 } } ) = - a \\ = > log_{3}( {3}^{ - 5} ) = - a \\ = > - 5 log_{3}(3) = - a \\ = > - 5(1) = - a \\ therefore \: a = 5 \\ \\ hope \: it \: helps$