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## Homework Statement

Let P and Q be points with corresponding vectors p and q.

a) show that the vector 1/2p+1/2q is the midpoint of the line segment joining P and Q

b)Find a point that is one third of the distance from P to Q

## Homework Equations

No idea

## The Attempt at a Solution

I'm not really sure.. but if you were to consider P to be one unit vector and Q to be one unit vector then PQ would be 2 unit vectors??