Analysis and Approaches for IBDP Maths Ebook 2 | Page 83

2. The function f is defined as f ( x) � sec� x � 2 , �0.5 � x � 0.5 . (a) Sketch the graph of y � f ( x) , showing clearly any points of intersection with the axes. [3] 7 (b) Solve the inequality sec� x �2 � 1. [3] 73 www.seprodstore.com