1. Prove a) r=(u*v)=r*u+r*v and b) d/dt(r*s)=r*ds/st+dr/dt*s
2. Relevant equations: b) dr/dt=lim t->0=Δr/Δt and Δr=r(t+Δt)-r(t)
3. Attempt at the solution:
Okay, so I was able to work out part a but I'm not quite sure how to start part b. Could anyone point me toward a useful resource to explain how to approach this problem? I'm not looking for an answer, just a means to an answer.
(* is dot product)
2. Relevant equations: b) dr/dt=lim t->0=Δr/Δt and Δr=r(t+Δt)-r(t)
3. Attempt at the solution:
Okay, so I was able to work out part a but I'm not quite sure how to start part b. Could anyone point me toward a useful resource to explain how to approach this problem? I'm not looking for an answer, just a means to an answer.
(* is dot product)
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