Analysis and Approaches for IBDP Maths Ebook 1 | Page 99

Front Page
34
Paper 1 Section A – Sketching trigonometric functions
Example
Let
�π
�
f ( x) � 4cos � x�
� 2 � , for 0�x
� 4.
(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
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