Question

Ex 11 va rog e urgent!! Dau coroana!!

Answer 1

Răspuns:

$\sqrt[2]{m*n}=\\m=12\sqrt{10} -12\\n=3+\sqrt{90}=3+3\sqrt{10}  \\\\=>m*n=(12\sqrt{10}-12)*(3+3\sqrt{10})=36\sqrt{10}+360-36-36\sqrt{10}=324\\   =>\sqrt{m*n}=\sqrt{324}=18$

Explicație pas cu pas: