1. Find L = lin1:_,m (). (5 marks.) 92+? 2. Suppose that the variable 3' is implicitlyr dened as a function of the variables I and y by the equation $3} + yrs + :1\" = 1. Find the partial derivatives 5% and 35. (10 3. Consider the function f (:r, y} = (ES). \"What is the largest domain of this function, assuming that it is a subset of R2? Find the partial derivatives if (my) and if (any). Evaluate these partial derivatives at the point (any) = (2? 1). (10