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Class 12 Three Dimensional Geometry · Mcq Single Correct1 Marksdirection_cosines

Class 12 Maths · Three Dimensional Geometry · Mcq Single Correct #4

Find direction cosines of (x−1)/2=(1−y)/3=(2z−1)/12.

✅ Step-by-Step Solution

Final Answer: Option (D): (2,−3,6)/7
  1. Parameter t gives (x,y,z)=(1+2t,1−3t,1/2+6t). Normalize (2,−3,6), whose norm is 7.

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