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How far apart are the points (-1, 3, -4) and (1, -3, 4)?
Aroot 26
B2 root 13
C2 root 26
D4 root 13
Answer & Solution
Correct answer: C. 2 root 26
The squared differences 4 + 36 + 64 = 104, and root 104 = 2 root 26.
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