Home › CBSE Class 11 (Commerce) › Mathematics › Introduction to Three-dimensional Geometry › Find PQ for P(1, -3, 4) and Q(-4, 1, 2).
Find PQ for P(1, -3, 4) and Q(-4, 1, 2).
A5 root 2
Broot 29
C3 root 5
D3 root 3
Answer & Solution
Correct answer: C. 3 root 5
The squared differences 25 + 16 + 4 = 45, and root 45 = 3 root 5.
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