Răspuns :
= [√3 ·( √2 - 1 ) - (√2 - 1) ] / (√3 -1 ) · ( 1 - √2) =
= ( √2 - 1 ) · ( √3 - 1 ) / ( √3 - 1 ) · ( 1 - √2) =
= ( √2 -1 ) · ( √3 -1 ) : ( √3 -1 ) · ( 1 - √2 ) =
= 1
= ( √2 -1 ) ; ( 1 - √2) =
= - ( 1 - √2 ) : ( 1 - √2 ) =
= 1
= - 1
= ( √2 - 1 ) · ( √3 - 1 ) / ( √3 - 1 ) · ( 1 - √2) =
= ( √2 -1 ) · ( √3 -1 ) : ( √3 -1 ) · ( 1 - √2 ) =
= 1
= ( √2 -1 ) ; ( 1 - √2) =
= - ( 1 - √2 ) : ( 1 - √2 ) =
= 1
= - 1
[√3 ·( √2 - 1 ) - (√2 - 1) ] / (√3 -1 ) · ( 1 - √2) =
( √2 - 1 ) · ( √3 - 1 ) / ( √3 - 1 ) · ( 1 - √2) =
( √2 -1 ) · ( √3 -1 ) : ( √3 -1 ) · ( 1 - √2 ) =1
( √2 -1 ) ; ( 1 - √2) =
- ( 1 - √2 ) : ( 1 - √2 ) = -1
( √2 - 1 ) · ( √3 - 1 ) / ( √3 - 1 ) · ( 1 - √2) =
( √2 -1 ) · ( √3 -1 ) : ( √3 -1 ) · ( 1 - √2 ) =1
( √2 -1 ) ; ( 1 - √2) =
- ( 1 - √2 ) : ( 1 - √2 ) = -1