Question

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1√2+1=
-0√2+1=
-2√2+1=
-(2√2).√2+1=

Answer 1

√2=1.4142  aproximativ
si inlocuiesc
a) 1√2+1=1.4142+1=2.4142
b)-0√2+1=0+1=1
c)-2√2+1=-2*1.4142+1=-2.8284+1=-1.8284
d)-(2√2)√2+1=-2√2√2+1=-2*2-1=-4-1=-5

Answer 2

1) 1√2 + 1 =√2 + 1 = 1, 41 + 1 = 2, 41        √2 ≈ 1,41
2)- 0√2 + 1 = 0 + 1 = 1, orice numar inmultit cu 0 va da 0
3) - 2√2 + 1= ( - 2) · 1,41 + 1 = - 2,82 + 1 = - 1,82
4) - ( 2√2) : √2 + 1 =  - 2 + 1 = - 1
5) - ( 2√2) · √2 + 1 = - 2· ( √2 )²+ 1 = - 2 ·2 + 1 = - 4 + 1 = - 3