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TS EAMCET · Maths · Three Dimensional Geometry

If the position vectors of three points A, B, C respectively are i^+2j+k^, 2i^-j^+2k^  and i^+j^+2k^, then the perpendicular distance of the point C from the line AB is

  1. A 311
  2. B 411
  3. C 611
  4. D 811
Verified Solution

Answer & Solution

Correct Answer

(C) 611

Step-by-step Solution

Detailed explanation

Given position vector are, A:i^+2j^+k^ B:2i^-j^+2k^ C:i^+j^+2k^ AC→=OC→-OA→ =i^+j^+2k^-i^+2j^+k^ =1-1i^+1-2j^+2-1k^ =-j^+k^ AB→=OB→-OA→ =2i-j^+2k^-i^+2j^+k^ =2-1i^+-1-2j^+2-1k^ =i^-3j^+k^ Consider, AC→×AB→=i^j^k^0-111-31…