Choose the correct option based on the parallelogram ABCD.
A
−−→AB = −−→AD + −−→DC + −−→CB
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B
−−→AB = (−−→AD + −−→DC) + −−→CB
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C
−−→AB = −−→AD + (−−→DC + −−→CB)
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D
All of the above
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Solution
The correct option is DAll of the above From the associative law of vector addition −−→AD + (−−→DC + −−→CB) = (−−→AD + −−→DC) + −−→CB
and since, from triangle law of vector addition −−→AB = −−→AD + −−→DB = −−→AD + (−−→DC + −−→CB)