Question

2 log 2 2√2

Log2log2 4

Log5log3 3

Answer 1

$2log_{2} (2 sqrt{2})= log_{2} (2 sqrt{2} )^2= log_{2} 8=3$
$log_{2} ( log_{2} (4))= log_{2} 2=1$
$log_{5} ( log_{3} (3))= log_{5} 1=0$