Question
Let $\overrightarrow C = \overrightarrow A + \overrightarrow B $ then
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Answer
(b) $\vec C + \vec A = \vec B$.
The value of $C$ lies between $A - B$ and $A + B$
$|\vec C|\; < \;|\vec A|\;\;{\rm{or}}\;\;|\vec C|\; < \;|\vec B|$
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