cross product HW

A = 20i + 3j - 12k

B = 12i - 4j + 5k

Find:

magnitudes A and B
dot product
angle between
cross product of A X B
cross product of B X A

Feel free to use the matrix/determinant method for the last two problems.

Review the right hand rule for problems like:

i X i
i X k
North X West
etc