The magnitude of a given vector with end points $ (4, -4, 0)$ and $(-2, -2, 0)$ must be
The magnitude of a given vector with end points $ (4, -4, 0)$ and $(-2, -2, 0)$ must be
- A
$6$
- B
$5\sqrt 2 $
- C
$4$
- D
$2\sqrt {10} $
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- [AIPMT 2006]
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