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Problem 1. Let u and u be vector fields. Use indicial notation in a Cartesian coordinate system to prove the following relations. (a) div(curlu) =

Problem 1. Let u and u be vector fields. Use indicial notation in a Cartesian coordinate system to prove the following relations. (a) div(curlu) = 0. (b) div(u Q u) = (Vu) . u+ (div u)v

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