Vector Subtraction. The resu ltant of the tfiffrrmCl' between Iwo
VCC;[ors A and n of lhe same I)'PC may be ex pressed as
R' = A - II = A + (-8 )
This vtClor sum is shown graphicall y in Fig. 2-6. Subtraction is therefore
defined as 11 special case of addition. so the rules of "CClor addition also
apply 10 vector subtract;oll.