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AP EAMCET · Maths · Three Dimensional Geometry

If 2,3,c are the direction ratios of a ray passing through the point C5,q,1 and also the mid point of the line segment joining the points Ap,-4.2 and B3,2,-4 then c.p+7q=

  1. A 17
  2. B 34
  3. C 21
  4. D 28
Verified Solution

Answer & Solution

Correct Answer

(B) 34

Step-by-step Solution

Detailed explanation

The mid point of the line segment joining the points Ap,-4.2 and B3,2,-4 is given by Mp+32,-1,-1 Now given 2,3,c is direction ratio of line which passing through C5,q,1 & Mp+32,-1,-1 So, by direction ratio formula between two points we get, p+32-5=2⇒p=11…