Q1 - Use chain rule to find df/dx , df/dy

For f(r,s,v) = r^3 + s + v^2 , where r = xe^y , s = ye^x and v = x^2 y

Q2 - Spherical coordinates of a point are (4 , π/6 , π/2)

a - Convert spherical coordinates to rectangular coordinates

b - Convert spherical coordinates to cylinderical coordinates

c - Verify your answer by converting back spherical coordinates from anyone of these, that is , either from rectangular or cylinderical coordinates.

I need detailed answer for Question no. 1 coz i dont know how to start it.. and for Question 2 just hints for that .. Thanks in advance