Question: Example: The diagram shows a cuboid whose vertices are Q. A, B, C, D, E, F and G. Vectors a, b and c are the

Example: The diagram shows a cuboid whose vertices are Q. A,

Example: The diagram shows a cuboid whose vertices are Q. A, B, C, D, E, F and G. Vectors a, b and c are the position vectors of the vertices A, B and C respectively. The points and w and x the points Y and Z lie on OA and EF such that OW: WX :XA = 1:3:1=EY: YZ: ZF. Prove that the diagonals WY and XZ bisect each other.

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