c). U shape and (2,-4), (6,12) N1 d). Integrate K1 Substitute limit t=3 and t=4 K1 N1 10 13 a). i). K1 N1 ii). K1 N1 b). Equate K1 N1 P1 Use ratio Find , OR Find for P,Q, R and S, K1 K1 N1 10