Question

não consigo resolver ,ajudem-me

Answer 1

$\frac{sen45}{ \sqrt{6} } = \frac{sen60}{x} \\\\ \frac{ \frac{ \sqrt{2} }{2} }{ \sqrt{6} } = \frac{ \frac{ \sqrt{3} }{2} }{x} \\\\ \frac{1}{2 { \sqrt{3} } } = \frac{ \sqrt{3} }{2x}\\\\ x = ( \sqrt{3} )^{2} \\\\ \boxed{x = 3}$

Answer 2

Lei dos Senos: 

$AC= \sqrt{6} sen 60/sen45 AC= \sqrt6 . \frac{\sqrt3}{2} / \sqrt2/2 AC= \sqrt18/2/\sqrt2/2 AC= \sqrt18/2.sqrt2/2 AC= \sqrt36/4 AC= 6/4=3/2$