In previous activity we saw that we can write + + instead of ( + ) + or of + ( + ).
Combining the associative property with the commutative property, we can write
+ + = + + = + + = + + = + + = ... etc.
In other words, we can add three vectors placing them in the order that we want; we will always obtain the same result.
Also we can apply the commutativity to the addition of more than three vectors:
+ + + + = + + + + = + + + + = ... etc. |