Odpowiedzi

2009-10-26T12:48:52+01:00
Wykonaj działanie
a) (3-√3)+(5-2√3)=3 - √3 + 5 - 2√3 = 8 -3√3

b) 3√5-(√20-√28)-3√7= 3√5 -2√5+2√7 -3√7 =√5 - √7
bo : √20 =√4*5 = √4*√5 = 2√5
√28= √4*7 = √4*√7 =2√7
2009-10-26T12:55:22+01:00
A) (3-√3)+(5-2√3)=3 - √3 + 5 - 2√3 = 8 -3√3

b) 3√5-(√20-√28)-3√7= 3√5 -2√5+2√7 -3√7 =√5 - √7
2009-10-26T17:42:31+01:00
A) (3-√3)+(5-2√3)=3 - √3 + 5 - 2√3 = 8 -3√3

b) 3√5-(√20-√28)-3√7= 3√5 -2√5+2√7 -3√7 =√5 - √7

):)