1. The problem statement, all variables and given/known data Solve ∂v/∂θ and ∂v/∂r. (refer to attached image for equations) 2. Relevant equations Refer to attached image. note that the velocity is expressed in cylindrical coordinates and attention must be paid to the directional unit vectors eθ and eρ. 3. The attempt at a solution Have solution (refer to attached image). However would like to understand the general steps involved such to apply them to other equations with generalised variables and time derivatives. If any additional information is required to solve please do not hesitate to ask.