Find the stationary point or points of the function f(x) = In(x) - (x - 1), and then use this to show that In(x) 0. 7 External work to be marked separately. Please upload your answer to this question in a single file here: (Upload your answer Find the value of c > 0 such that the line y = x + 16 is the tangent line to the curve cvx (i.e. intersects the curve at one point and shares the same slope at that point). 2 A model used for the yield Y of an agricultural crop as a function of the nitrogen level N in the soil is KN Y = 49 + N2 where k is a positive constant. What nitrogen level gives the best yield? 2