1. The problem statement, all variables and given/known data Evaluate: ∇ • (r^3 * ȓ ) (del dot (r^3 times vector r)), where r = sqrt(x^2+y^2+z^2) and vector r = (x, y, z) 3. The attempt at a solution So, taking the partial derivative of the x component, I got 2r3/2. Doing the same thing for the y, z components I got a similar answer. This gives me a solution of ∇ • (r^3 * ȓ ) = 6r3/2. However, according to my professor, the actual answer is just 6r^3. I don't know where I'm going wrong in my calculations, and any and all help would be appreciated. Thank you!