Question

Cat face ... plss Dau coroana

Answer 1

$\frac{18}{ \sqrt{27} } *( \sqrt6{ \frac{3}{6} - \sqrt{ 21\frac{1}{3} })+(- \frac{ \sqrt{12} }{2} ) ^{6}*( \sqrt{0,(3)} ) ^{2} ;$
$=\frac{18}{3 \sqrt{3} } *( \sqrt{ \frac{27}{4} } - \sqrt{ \frac{64}{3} } )+ \frac{1728}{64} *0,(3); \\ \\ = \frac{18}{3 \sqrt{3} } * (\frac{3 \sqrt{3} }{2}- \frac{8}{ \sqrt{3} } )+27* \frac{1}{3}; \\ \\ Rationalizam-\ \textgreater \ \\ = \frac{18 \sqrt{3} }{9} *( \frac{3 \sqrt{3} }{2} - \frac{8 \sqrt{3} }{3} )+9; \\ \\ = 2\sqrt{3} *( \frac{9 \sqrt{3}-16 \sqrt{3} }{6} )+9; \\ \\ =2 \sqrt{3}* ( \frac{-7 \sqrt{3} }{6} )+9; \\ \\ = \frac{-42}{6} +9; \\ \\ =-7+9 \\ \\ =2;$