8 . The function f is defined as f ( x) � AsecBx � C , �2� x � 2, 2�x
� 6, A , B , C � . There are only two turning points . The coordinates of the local minimum and the local maximum of the graph of f are ( 0 , 5 � � ) and ( 4 , 5 � � ) respectively .
Find the values of A , B and C . [ 4 ]
© SE Production Limited 12 All Rights Reserved 2021