Question

calcule  e simplifique
√2·√5=

calcule  e simplifique
√2·√5=

√3·√15=

√2·√98=

Answer 1

$\boxed{\sqrt{2} . \sqrt{5} ~\to~ \sqrt{10}}$

$\boxed{ \sqrt{3} . \sqrt{15}~\to~ \sqrt{45} ~\to~ \sqrt{9.5}~\to~ 3 \sqrt{5} }$

$\boxed{ \sqrt{2} . \sqrt{98} ~\to~ \sqrt{196} ~\to~ \sqrt{7^2.2^2} ~\to~2.7~\to~14}$