Graphical Addition: Refer to the figure, which shows four vectors 
,
, 
, and 
.
(a) Vector 
as
expressed in terms of vectors 
and 
is given byA) 
+ 
.B) 
- 
.C) 
- 
.(b) Vector 
as expressed in terms of vectors 
and 
is given byA) 
+ 
.B) 
- 
.C) 
- 
.
Fill in the blank(s) with the appropriate word(s).
(a) B (b) A
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