AP EAMCET · Maths · Three Dimensional Geometry
If the direction cosines \(l, m, n\) of two lines are satisfying the relations \(l+m+n=0\), \(l m=0\), then the angle between those two lines is
- A \(0\)
- B \(\frac{\pi}{2}\)
- C \(\frac{\pi}{4}\)
- D \(\frac{\pi}{3}\)
Answer & Solution
Correct Answer
(D) \(\frac{\pi}{3}\)
Step-by-step Solution
Detailed explanation
No solution. Refer to answer key.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Maths
- AP EAMCET 2019 Medium
- Angle between the lines of intersection of the planes \(x-y=0,2 x+y+z=0\) and \(2 x-z=0, x+y-3 z=0\) isAP EAMCET 2020 Medium
- In \(\triangle \mathrm{ABC}\), if a \(\cos ^2 \frac{\mathrm{C}}{2}+\cos ^2 \frac{\mathrm{A}}{2}=\frac{3 \mathrm{~b}}{2}\), then \(\mathrm{a}+\mathrm{c}: \mathrm{b}=\)AP EAMCET 2023 Hard
- If \(P+Q+R=\frac{\pi}{4}\), then
\(\cos \left(\frac{\pi}{8}-P\right)+\cos \left(\frac{\pi}{8}-Q\right)+\cos \left(\frac{\pi}{8}-R\right)=\)AP EAMCET 2024 Hard - If \(I=\int_0^\pi x\left\{\sin ^2(\sin x)+\cos ^2(\cos x)\right\} d x\), then,
\([I]=\ldots .\). Here,[.] denotes greatest integer function.AP EAMCET 2021 Hard - If \(\cos (\theta-\alpha), \cos \theta\) and \(\cos (\theta+\alpha)\) are in harmonic progressions, then \(2 \tan ^2 \theta=\)AP EAMCET 2023 Hard
More PYQs from AP EAMCET
- Assertion (A): In a region of constant potential, the electric field is zero and there can be no charge inside the region. Reason (R): According to Gauss law. charge inside the region should be zero if electric field is zero.AP EAMCET 2022 Easy
- of a compound having molecular formula , on reacting with gives of a product which has molecular formula . Calculate the percentage yield of the product . (Given atomic weights of and respectively are and )AP EAMCET 2021 Medium
- Assertion (A) In S.H.M kinetic and potential energy become equal when the distance is \(1 / \sqrt{2}\) times its amplitude. Reason (R) The potential energy of a particle executing S.H.M is periodic with time period being maximum at the extreme displacement.AP EAMCET 2022 Hard
- \(\int \frac{x^2}{\left(x^2-1\right)\left(x^2+1\right)} d x=\)AP EAMCET 2023 Easy
- \(f(x)=\left\{\begin{array}{cl}\frac{1-\sin ^3 x}{3 \cos ^2 x}, & x < \frac{\pi}{2} \\ \alpha, & x=\frac{\pi}{2} \text { is continuous at } x=\frac{\pi}{2}, \\ \frac{\beta(1-\sin x)}{(\pi-2 x)^2}, & x>\frac{\pi}{2}\end{array}\right.\) then \(\alpha \beta=\)AP EAMCET 2022 Medium
- Which of the following molecules has T-shaped geometry?AP EAMCET 2021 Easy