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Class 12 Three Dimensional Geometry · Assertion Reason1 Marksequations_of_lines

Class 12 Maths · Three Dimensional Geometry · Assertion Reason #22

Assertion (A): The line through P=(1,2,3),Q=(3,−1,3) is r=(3,−1,3)+t(2,3,0). Reason (R): The line through distinct P,Q is r=P+t(Q−P).

✅ Step-by-Step Solution

Final Answer: Option (D): A is false but R is true.
  1. Q−P=(2,−3,0), which is not proportional to the asserted direction (2,3,0). The general rule is true.

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