If the coordinates of the points A, B, C be (–1, 3, 2), (2, 3, 5) and (3, 5, –2)…
Mathematics · JEE Main · NTA Exams — Three Dimensional Geometry
If the coordinates of the points A, B, C be (–1, 3, 2),
(2, 3, 5) and (3, 5, –2) respectively, then ∠A =
(2, 3, 5) and (3, 5, –2) respectively, then ∠A =
- 0º
- 45º
- 60º
- 90º
Answer
(D) 90º
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The length of the perpendicular from the point (2, -1, 4) on the straight line, x+3 10 = y-2 -7 = z 1 is:
- If | a |=| b |, then is
- Given the vectors a ~b the angle between which equals 120° . If | a |=3 | b |=4 then the length of the vector…
- The point at which the line joining the points (2, –3, 1) & (3, –4, –5) intersects the plane 2x + y + z = 7…
- The Plane 2x – (1 + λ) y + 3λ z = 0 passes through the intersection of the planes
- The value of k, if the line x-4 1 = y-z 1 = z-k 1 lies on the plane 2 x-4 y+z=7 , will be
- Vectors a ~b make an angle = 2 3 . If | a |=1,| ~b |=2 then ( a +3 b ) (3 a - b )^ 2 =
- If a line has direction ratios > , then its direction- cosines will be :
More Three Dimensional Geometry questions · Browse all practice questions