1.

If a, b, c are three non-coplanar vectors, then the vector equation \[\mathbf{r}=(1-\mathbf{p}-\mathbf{q})\,\mathbf{a}+p\mathbf{b}+q\mathbf{c}\] represents a    [EAMCET 2003]

A.   Straight line   
B.   Plane
C.   Plane passing through the origin
D.   Sphere
Answer» C.   Plane passing through the origin


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