Question

Aratati ca 2 supra √3-1 apoi -√3=1

Answer 1

$\frac{2}{ \sqrt{3}-1 }$ $- \sqrt{3}$ = 

amplificam (rationalizam) cu √3+1

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

=$\frac{2}{2}$

=1