If α ,β, γ are the angles which a half ray makes with the positive directions of the axes , then
sin2α + sin2β + sin2γ =
1
2
-1
0
450
300
600
900
The cosine of the angle between any two diagonals of a cube
1/3
1/2
2/3
1/√3
The point which divides the line joining the points (2,4,5) and (3,5,-4) in the ratio -2:3 lies on
ZOX-plane
XOY-plane
YOZ-plane
None of these
-10
10/7
-10/7
-7/10
L is parallel to π
L is perpendicular to π
L lies in π
Parallel
Intersecting
Skew
Coincident
-13/4
-17/4
4
the angle between the two planes 3x-4y+5z =0 and 2x-y-2z=5 is
π/3
π/2
π/6
π/4
