Analysis and Approaches for IBDP Maths Ebook 1 | Page 103

Front Page 4. Let �1 � f ( x) � 3cos � x� � 2 � , for 0�x � 2� . (a) (i) Write down the amplitude of f . (ii) Find the period of f . (b) On the following grid sketch the graph of f . [3] [4] 10 www.seprodstore.com 95