Question 1 (24 marks) a) b) d) (i) Find the following limit if it exists: ismx) [2] (ii) The gravitational force exerted by the Earth on a unit mass at a distance r from the centre of the Planet is 6;\"? if r. [6] a b) Let f: 0, TE - R be the function such that f(x) = sinx 2 for all xe |0, and let P be the partition l'= 0, TC TC TC TC 2 6'4'3'2 Find L(P), the lower Reimann Sum for the partition