If A= [p, q, r^ ] and B= [p^ , q^ , r^ ] are two points on the line x= y=y z , such that…
Mathematics · JEE Main · NTA Exams — Three Dimensional Geometry
If \(A=\left[p, q, r^{\prime}\right] \text { and } B=\left[p^{\prime}, q^{\prime}, r^{\prime}\right]\) are two points on the line \(\lambda x=\mu y=y z\), such that \(O A=3\), \(O B=4\), then \(p p^{\prime}+q q^{\prime}+r r^{\prime}\) is equal to
- 7
- 12
- 5
- none of these
Answer
(D) none of these
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