1 2 1·( 2 +√2) 2·( 2 - √3)
=------------ ·---------------= --------------------------- · ------------------------
2 - √2 2+√3 ( 2 - √2)·(2 + √2) ( 2 +√3) ·( 2 -√3)
(2 + √2 ) · 2·( 2 - √3)
= ------------------------------ = ( 2 + √2)·(2 -√3) = 4+2√2-2√3-√6
2 ·1