PHYSICS!! SOS
posted by Sam on .
Determine the scalar product of A= 3.0i + 1.0j  2.0k and B= 3.0i  2.0j  3.0k .

take the dot product...
remember i dot i is 1, j dot j is 1, k dot k is 1, whereas any of the ij, jk, ki dot products is zero.
I will start you.
A dot B= 3i dot 3i + 1j dot(2j) + ....
A.B=9+(2)+ ...
then add them