Parallel
Coincident
Skew
Perpendicular
The direction ratios of the line x-y+z-5=0 and x-3y-6=0 are
3,1,-2
2,-4,1
3/√14, 1/√14 ,-2/√14
2/√41 , -4/√41 , 1/√41
L is parallel to π
L is perpendicular to π
L lies in π
None of these
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
00
300
450
900
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
the angle between the two planes 3x-4y+5z =0 and 2x-y-2z=5 is
π/3
π/2
π/6
π/4
If A(1,2,3) , B(-1,-1,-1) be the points ,then the distance AB is
√5
√21
√29
