Question

Aratati ca:
(1+0,5) (1-0,5)+(1 supra radical 2)la puterea a doua=5 supra 4
Dau coroana!

Answer 1

Bunaa

(1+0,5)(1-0,5)+(1/√2 )² =
1,5 ori 0,5 + ( √2/2)² =
0,75 + 2/4 =
0,75 + 0,5 =
1,25 = 5/4

Bafta :3

Answer 2

1-0,25+$\frac{1}{2}$=1-0,25+0,5=1,25=$\frac{5}{4}$