Question

1.extrageti radacina patrata radical din 68121.2.calculati mg. a nr a=5 radical din5 si b=3 radical din5

Answer 1

$\sqrt{68121} =261$
$mg= \sqrt{a*b} = \sqrt{ 5\sqrt{5}* 3\sqrt{5} } = \sqrt{ 15\sqrt{25} } = \sqrt{15*5} = \sqrt{75}=5 \sqrt{3}$