Question

Log 49√7 + log 25√5 + log 4√2

Answer 1

log 49√7+log25√5+log4√2 =log(49√7)(25√5)(4√2)
= log 49×25×4×√7×√5×√2 =log 49×100×√70 =
$log( {70}^{1.5} )$
=1.5log(70) .