Analysis and Approaches for IBDP Maths Ebook 2 | Page 67

SUMMARY POINTs
�
Properties of graphs of trigonometric functions:
1. �1�
x � 1
2. 0 �arccos x � �
1. x�
2.
�
�
� � arctan x �
2 2
7
�
�
Symmetric properties of trigonometric functions:
1. sin( �x) � �sin x � cosec( �x) � � cosecx
2. cos( �x) � cos x � sec( �x) � sec x
3. tan( �x) � �tan x � cot( �x) � � cot x
Compound angle formula:
1. sin( A� B) � sin Acos B � cos Asin
B
2. sin( A� B) � sin Acos B � cos Asin
B
3. cos( A� B) � cos Acos B � sin Asin
B
4. cos( A� B) � cos Acos B � sin Asin
B
5.
6.
tan A�
tan B
tan( A�B)
�
1 � tan Atan
B
tan A�
tan B
tan( A�B)
�
1 � tan Atan
B
Solutions of Chapter 7
www.seprodstore.com
57