If position vectors of A, B, C, D are respectively 2 i +3 j +5 k , i +2 j +3 k ,-5 i +4 j…
Mathematics · JEE Main · NTA Exams — Three Dimensional Geometry
If position vectors of A, B, C, D are respectively
\(2 \hat{i}+3 \hat{j}+5 \hat{k}, \hat{i}+2 \hat{j}+3 \hat{k},-5 \hat{i}+4 \hat{j}-2 \hat{k} \text { and } \hat{i}+10 \hat{j}+10 \hat{k},\)
then
\(2 \hat{i}+3 \hat{j}+5 \hat{k}, \hat{i}+2 \hat{j}+3 \hat{k},-5 \hat{i}+4 \hat{j}-2 \hat{k} \text { and } \hat{i}+10 \hat{j}+10 \hat{k},\)
then
- AB || CD
- dc || AD
- A, B, C are collinear
- B, C, D are collinear
Answer
(A) AB || CD
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