Question

$Aratati \frac{2}{rad3-1} -rad3=1$

Answer 1

rationalizam cu rad3+1 si vom avea
2(rad3+1)/3-1 - rad3=1
2(rad3+1)/2-rad3=1   aducem la ac numitor
2(rad3+1)-2rad3=2
2rad3+2-2rad3=2   radicalii se anuleaza reciproc si ramane
2=2 Adevarat