Question

a=√3-1                $\frac{1}{a} - \frac{1}{b}$ =
b= 1+√3             mersi mult mult

Answer 1

1/a-1/b=1/(√3-1)  -1/(√3+1)
aducand la acelasi numitor
(√3+1-√3+1)/(√3-1)(√3+1)=2/(3-1)=2/2=1

Answer 2

1/a-1/b=1/(√3-1)  -1/(√3+1) (√3+1-√3+1)/(√3-1)(√3+1)=2/(3-1)=2/2=1.