The direction ratios of two perpendicular lines are 1,-3,5 and _ 1 1+ _ 1 2+ . Then is
Mathematics · JEE Main · NTA Exams — Three Dimensional Geometry
The direction ratios of two perpendicular lines are \(1,-3,5\) and \(\lambda_{1} 1+\lambda_{1} 2+\lambda\). Then \(\lambda\) is
- \(-\frac{7}{3}\)
- \(\frac{7}{2}\)
- \(-\frac{1}{4}\)
- \(\frac{1}{2}\)
Answer
(A) - 7 3
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