(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Assuming that ∅ is a differentiable scalar valued function andFa differentiable vector field, derive the following identities.

a)∇(dotted with)(∅F) = ∇∅(dotted with)F+ ∅∇(dotted with)F

b)∇(crossed with)(∅F) = ∇∅(crossed with)F+ ∅∇(crossed with)F

2. Relevant equations

3. The attempt at a solution

Honestly don't know where to start.

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# Deriving cross product and dot product, stuck at beginning.

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