- #1
thomas49th
- 655
- 0
Homework Statement
http://gyazo.com/94783c14f2d2d05e62e479ab33c73830
Homework Equations
I know the dot product and cross product, but even for the first one I don't see how either helps.
The Attempt at a Solution
1. the gradient of the 2 scalars multiplied together (not crossed or dotted just multiplied)
I know that the derivative of a scalar is a vector, but that won't help here
Can someone put me out of my misery?
Thomas