Question

Me ajudem a responder essa 7 por favor

Answer 1

b)

$\frac{ \sqrt{6} + 1 }{ \sqrt{2} + \sqrt{3} } \times \frac{ \sqrt{2} - \sqrt{3} }{ \sqrt{2} - \sqrt{3} } = - \{2 \sqrt{3} - 3 \sqrt{2} + \sqrt{2} - \sqrt{3} = - 2 \sqrt{3} + 3 \sqrt{2} - \sqrt{2} + \sqrt{3} = - \sqrt{3} + \sqrt{2}$