A distancia entre seus centros é:
a) 3
b) 2 raiz de 2
c) raiz de 5
d)2
e)raiz de 5 sobre 2
X1 ( 0 , 0 )
- 2xa = - 4x
a = 2
- 2yb = - 4y
b = 2
X2 ( 2 , 2 )
y² = ( 0 - 2)² + ( 0 - 2 )²
y² = 4 + 4
y² = 8
y = 2v2
------------------------ > B
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Verified answer
X1 ( 0 , 0 )
- 2xa = - 4x
a = 2
- 2yb = - 4y
b = 2
X2 ( 2 , 2 )
y² = ( 0 - 2)² + ( 0 - 2 )²
y² = 4 + 4
y² = 8
y = 2v2
------------------------ > B