Coordinate Geometry » Exercise – 1
2. The angle between any two diagonals of a cube is :
(a) cos θ = √3/2
(b) cos θ = 1/√2
(c) cos θ = 1/3
(d) cos θ = 1/√6
| Subject Name : Engineering Mathematics |
| Exam Name : IIT GATE, UPSC ESE, RRB, SSC, DMRC, NMRC, BSNL, DRDO, ISRO, BARC, NIELIT |
| Posts Name : Assistant Engineer, Management Trainee, Junior Engineer, Technical Assistant |
| Engineering Mathematics Books
|
| GATE 2023 Total Info | ENGG DIPLOMA | UGC NET Total Info |
| IES 2023 Total Info | PSUs 2022 Total Info | CSIR UGC NET Total Info |
| JAM 2023 Total Info | M TECH 2023 Total Info | RAILWAY 2022 Total Info |
Related Posts
Coordinate Geometry » Exercise - 19. The line (x+1)/2 = (y+1)/3 = (z+1)/4 meets the plane x+2y+3z = 14, in the point : (a) (3,-2 ,5) (b) (3,2,-5 ) (c) (2,0,4 ) (d) (1,2,3)- Coordinate Geometry » Exercise - 16. The symmetric form of the equations of the line x+y-z = 1, 2x-3y+z = 2 is : (a) (x/2) = (y/3) = (z/5) (b) (x/2) = (y/3) = (z-1/5) (c) (x-1/2) = (y/3) = (z/5) (d) (x/2) = (y/3) = (z/5)
- Coordinate Geometry » Exercise - 14. The line joining the points (1,1,2) and (3, -2 ,1) meets the plane 3x+2y+z = 6 at the point : (a) (1,1,2 ) (b) (3,-2 ,1) (c) (2,-3,1 ) (d) (3,2 ,1)
- Matrices and Determinants » Exercise - 111. if A = then 3A is : (a) (b) (c) (d)
- Coordinate Geometry » Exercise - 1 1. The pair of lines whose direction cosines are given by the equations 3l+m+5n=0, 6mn-2nl+5lm=0 are : (a) parallel (b) perpendicular (c) inclined at cos-1 (1/6) (d) none of these