Question

Find the value of ${\log }_2.{\log }_{3}9$

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Answer 1

9 can be written as $3^2$

So, ${\log }_2.{\log }_3.3^2$

= ${\log }_2.2{\log }_{3}3$ {since ${\log }_{3}3=1$}

=${\log }_{2}2$

= $1$