Dear student,
points are colinear if they belong to the same line
 
 non-colinear, means that they do not belong to the same line
 
 coplanar, is that points belong to the same plane
 
 non-coplanar is that they do not belong to the same plane.
 













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1)collinear vectors are those which are along same straight line...
eg) A = 2i+j+k
      B=4i+2j+2k
here B = 2(2i+j+k) = 2A
these are collinear...
2)coplaner vectors are those which are in same plane....
 A =i+j , B  =i
both of these are in XY plane ,hence coplaner..