The sum of two vector A and B is 5i^+j^ their difference is 3i^-2j^. The vector Ā then is
a. 8i^+j^
b. 2i^-5j^
c. i^-2.5j^
d. None
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The sum of two vector A and B is 5i^+j^ their difference is 3i^-2j^. The vector Ā then is
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