TS EAMCET · Maths · Three Dimensional Geometry
If the direction cosines \((1, \mathrm{~m}, \mathrm{n})\) of two lines are connected \(\mathrm{b}\) the relations \(1+\mathrm{m}+\mathrm{n}=0\) and \(\mathrm{lm}=0\), then the angle between those lines is
- A \(\frac {\pi}{3}\)
- B \(\frac {\pi}{4}\)
- C \(\frac {\pi}{2}\)
- D \(\frac {\pi}{6}\)
Answer & Solution
Correct Answer
(A) \(\frac {\pi}{3}\)
Step-by-step Solution
Detailed explanation
\(l+m+n=0 ; l m=0\)…
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