Introduction to 3DMedium
Question
If the line 
makes angles α, β, γ with xy, yz and zx planes respectively then which one of the following are not possible ?
makes angles α, β, γ with xy, yz and zx planes respectively then which one of the following are not possible ?Options
A.sin2α + sin2β + sin2β = 2 and cos2α + cos2β + cos2γ = 1
B.tan2α + tan2β + tan2γ =7and cot2α + cot2β + cot2γ = 5/3
C.sin2α + sin2β + sin2β = 1 and cos2α + cos2β + cos2γ = 2
D.sec2α + sec2β + sec2γ = 10 and cosec2α + cosec2β + cosec2γ = 14/3
Solution
cos α =
⇒ α = 30o, cosβ = 
⇒ β = 30o,cos γ =
⇒ γ = 45oBy putting the values check options
Create a free account to view solution
View Solution FreeMore Introduction to 3D Questions
The locus of the point which moves such that its distance from (1, − 2, 2) is unity, is -...The co-ordinates of the point which are lie equally distance from the point (0, 0, 0) ; (a, 0, 0) ; (0, b, 0) and (0, 0,...I. The ratio in which the line segment joining (2, 4, 5) and (3, 5, −4) is divided by the yz-plane is 2 :3.II. The...The length of line segment AB is 14 if its direction ratio are 2, 3, 6 then its direction cosines will be -...The point of intersection of the line and the plane 2x + 3y + z = 0 is -...