(Review: ) Are vector addition and column matrix addition both associative?

A good answer might be:

Yes.

Practice

Now it is your turn. Here are two vectors:

r = ( 4, 3 )T
s = ( 1, 2 )T

form the sum:

t = r + s

Do it by column matrix addition, and by the head-to-tail rule. In the applet, put the mouse pointer on the point where you wish to start an arrow, left-click and drag to the point where you wish the arrow to end.


QUESTION 13:

When your picture is complete, go on to the next page.