1. The problem statement, all variables and given/known data w=x^2+y^2+z^2 and ysin(z)+zsinx=0 find (delw/dely)xindpendent find (delw/dellz)zindependent 2. Relevant equations 3. The attempt at a solution For the first one I think I can use a chain rule where find (delw/dely)xindpendent= delw/delx*delx/dely + delw/dely*dely/dely + delw/delz*delz/dely I only know this from a book example so could you please explain how to solve these type problems and also how to find delx/dely??? Please!