Odpowiedzi

2009-12-04T13:52:33+01:00
[(4 ²/₃)⁰ * (2,5 -4√0,25 )² + (2,5)²] / [(√7 -3) *(√7 +3)* ½]=
=[1*(2,5-4*0,5 )²+ (2,5)²] / [(7-9)* ½]=
=[(2,5-2)²+ (2,5)²] / [(-2) * ½]=
=[(0,5)²+ 6,25] / (-1)=
=(0,25 +6,25) / (-1)= (6,5)/(-1)= -6,5
2009-12-04T13:56:13+01:00