prove that

Δ.(ΨΔφ x φΔΨ)=0

where Δ is delta.

anybody help plz

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- Nov 16th 2013, 07:32 AMMathGeni04Vector identites question
prove that

Δ.(ΨΔφ x φΔΨ)=0

where Δ is delta.

anybody help plz - Nov 16th 2013, 03:41 PMchiroRe: Vector identites question
Hey mathgeni04.

Hint: Expand all the vectors out in terms of <x,y,z> terms and use the definition of the dot and cross products. - Nov 16th 2013, 04:11 PMPlatoRe: Vector identites question
- Nov 18th 2013, 08:18 PMMathGeni04Re: Vector identites question
\Delta is del operator.

- Jan 5th 2014, 06:58 AMPeteRe: Vector identites question
- Jan 6th 2014, 07:22 AMHallsofIvyRe: Vector identites question
So you

**really**mean " "? - Jan 8th 2014, 09:45 AMPeteRe: Vector identites question
Thanks HallsofIvy. If that were the case then the whole thing makes sense, if it's an actual identity that is.