Question: Find an expression for grad ( v e c ( a ) v e c ( r ) ) where vec ( r ) is

Find an expression for grad(vec(a)vec(r)) where vec(r) is the position vector vec(r)=vec(i)x+vec(j)y+vec(k)z.
Find an expression for grad(vec(a)vec(r)) where vec(r) is the position vector

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