A line makes angles α,β,γ with the coordinate axes. If α + β = 90º, then γ =
Mathematics · JEE Main · NTA Exams — Three Dimensional Geometry
A line makes angles α,β,γ with the coordinate axes.
If α + β = 90º, then γ =
If α + β = 90º, then γ =
- 0
- 90º
- 180º
- None of these
Answer
(B) 90º
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The angle between the straight lines whose direction cosines are given by 2|+2 m-n=0, m n+n|+ m=0, is
- If the vectors a , ~b and c form the sides BC, CA and AB respectively of a triangle ABC, then
- Let a = j - k and c = i - j - k . Then the vector b satisfying a b + c =0 and a b =3, is
- If i , j , k are position vectors of A, B, C and AB = CX , then position vector of X is
- The lines, r _ 1 = i +2 j +3 k + (2 i +3 j +4 k ) and I _ 2 =2 i +3 j +4 k + (3 i +4 j +5 k ) are :
- The direction cosines of the line joining the points (2,3,-1) & (3,-2,1) are
- The projections of a vector on the three coordinate axes are 6,-3,2 respectively. The direction cosines of…
- The image of the points (–1, 3, 4) in the plane x – 2y = 0 is
More Three Dimensional Geometry questions · Browse all practice questions