Home
Class 12
MATHS
Lines OA and OB are drawn from O with di...

Lines OA and OB are drawn from O with directioncosines proportional to (1,-2,-1) and (3,-2,3) respectively. The direction ratios of the normal to the planes AOB are (A) (4,3,2) (B) (4,-3,-2) (C) (-4,3,-2) (D) (4,3,-2)

Text Solution

AI Generated Solution

Promotional Banner

Similar Questions

Explore conceptually related problems

Find the angle between the vectors with direction ratios proportional to 1,-2,1 and 4,3, 2.

Find the angel between the vectors with direction ratios proportional to 1, -2, 1 and 4, 3, 2.

Find angle between the two lines whose direction ratios are 1,-2,1 and 4,3,2 respectively

The direction ratios of a normal to the plane passing throuhg (0,0,1) ,(0,1,2) and (1,2,3) are proportional to

Find the projection of the line joining (1,2,3) and (-1,4,2) on the line having direction ratios 2,3,-6.

A plane bisects the line segment joining (-3,-3,4) and (3,7,6) and also perpendicular to this line, then the point lies on the plane can be (a) (1,-2,3) (b) (1,2,2) (c) (3,-5,2) (d) (3,-1,0)

The coordinates of the foot of perpendicular drawn from the point (2, 4) on the line x+y=1 are (A) (1/2, 1/2) (B) (- 1/2, 3/2) (C) (1/4, 3/4) (D) (3/2, - 1/2)

The inverse of the matrix [(2,3),(-4,7)] is (A) [(-2,-3),(4,-7)] (B) 1/26 [(7,-3),(4,2)] (C) [(7,4),(-3,2)] (D) [(7,-3),(4,2)]

The common oxidation states of Ti are (a) +2, +3 (b) +3, +4 (c) 3,-4 (d) +2,+3,+4

15. For matrix A=[(2,3),(-4,5)] , (adjA)^T is equal to (A) [(5,-3),(4,2)] (B) [(5,4),(-3,2)] (C) [(5,3),(4,-2)] (D) [(5,-3),(-4,2)]