Analysis and Approaches for IBDP Maths Ebook 2 | Page 86

Your Practice Set – Analysis and Approaches for IBDP Mathematics
Chapter
8
Vectors
SUMMARY POINTs
�
Terminologies of vectors:
AB
�
: Vector of length AB with initial point A and terminal point B
OP
�
: Position vector of P , where O is the origin
AB
�
: Magnitude (length) of AB
�
vˆ �
1
v
v
0 : Zero vector
: Unit vector parallel to v , with v ˆ �1
i : Unit vector along the positive x -axis
j : Unit vector along the positive y -axis
k : Unit vector along the positive z -axis
� A vector v can be expressed as v � v1i � v2j � v3k or
�v1
�
� �
v � v2
�v
�
� 3 �
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