**??? - 2014 JUNE Q11**

Fig. 11 shows a sketch of the curve with equation

(i) Find d

*y*/d*x*and show that(ii) Hence find the coordinates of the stationary point on the curve. Verify that the stationary point is a
maximum. [5]

(iii) Find the equation of the normal to the curve when

(iii) Find the equation of the normal to the curve when

*x*= -1. Give your answer in the form*ax*+*by*+*c*= 0. [5]