Introduction to 3DMedium
Question
Which one of the following statement is INCORRECT ?
Options
A.If 
= 0, 
= 0 and 
= 0 for some non zero vector 
, then 
= 0
= 0, = 0 and = 0 for some non zero vector , then = 0B.there exist a vector having direction angles α = 30o and β = 45o
C.locus of point in space for which x = 3 and y = 4 is a line parallel to the z-axis whose distance from the z-axis is 5
D.In a regular tetrahedron OABC where ′O′ is the origin, the vector 
is perpendicular to the plane ABC.
is perpendicular to the plane ABC.More Introduction to 3D Questions
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