Introduction to 3DHard
Question
The coordinates of a point on the line 
= z at a distance 4
from the point (1, -1, 0) are -
= z at a distance 4 from the point (1, -1, 0) are -Options
A.(9, -13, 4)
B.(8
+ 1, - 12 - 1, 4)
+ 1, - 12 - 1, 4)C.(-7, 11, -4)
D.(-8
+ 1, 
12 - 1, -4 
)
+ 1, 12 - 1, -4 )Solution
Let any point on line 
= z = λ
be (1 + 2λ, - 1 - 3λ, λ)
⇒ | λ | = 4 ⇒ l = ± 4
∴ Points (9, - 13, 4 ) and (- 7, 11, - 4)
= z = λbe (1 + 2λ, - 1 - 3λ, λ)
⇒ | λ | = 4 ⇒ l = ± 4
∴ Points (9, - 13, 4 ) and (- 7, 11, - 4)
Create a free account to view solution
View Solution FreeMore Introduction to 3D Questions
A plane is such that the foot of perpendicular drawn from the origin to it is (2, −1, 1). The distance of (1, 2, 3...The plane ax + by + cz = 1 meets the co-ordinate axes in A, B and C. The centroid of the triangle is -...If zx plane divides the line joining the points (1, −1, 5) and (2, 3, 4) in the ratio l :1 then l equals to −...The direction cosines of a line equally inclined with the coordinate axes are -...The ratio in which the yz-plane divides the join of the points (− 2, 4, 7) and (3, − 5, 8) is -...