1(a) For the vector function(adsbygoogle = window.adsbygoogle || []).push({}); q(x,y,z)=(xy-z^{2})i+(yz+x^{2})j+(xz-y^{2})kcalculate

(i)∇ .q(ii) ∇ .q(iii) ∇ x (∇ xq)

verify that the identity ∇ x (∇ xq) = ∇(∇ .q- ∇^{2}q

i have answers of y+z+x,(-3y,-3z,1x) and (3,-1,3) respectivly for the first part but cant fathom the second part, mainly because subbing back in (which i presume is how this is shown) the part where i sub in y+z+x for (∇ .q) what do i now do with ∇ . (y+z+x). the fact that i end up with this leads me to beleive that subbing in is wrong but if it is i really dont know where to go, help please!

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# Homework Help: Vector calc

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