Consider where .
I have figured out how to determine the Dot product becasue it is fairly straight forward. However the Cross product seems to be a challenge for me as I cannot seem to grasp.
Here is the Problem
Determine: AXB if A = 3i - 2j and B = i + 2k
Need help working out this problem......
That is equivalent to the basic definition of x=cross product:
, , .
cross product distributes over addition, and cross product is skew- symmetric ( ).
Because cross product is skew symmetric, , , , , , and .
That reduces the above to [tex](aq- bp)i- (ar- cp)j+ (aq- bp)k which is the same as