If A = (p, q, r) and B = (p^ , q^ , r^ ) are two points on the line x=t y=v z such that…
Mathematics · JEE Main · NTA Exams — Three Dimensional Geometry
If A = \((p, q, r)\) and B = \(\left(p^{\prime}, q^{\prime}, r^{\prime}\right)\) are two points on the line \(\lambda x=t y=v z\) such that OA = \(\mathbf{a}\), OB = \(\text { b }\) then \(p p^{\prime}+q q^{\prime}+r r^{\prime}\) is equal to
- \(\mathrm{a}+\mathrm{b}\)
- \(\text { ab }\)
- \(\sqrt{a^{2}+b^{2}}\)
- None of these
Answer
(D) None of these
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