If A + B = A - B then vector B must be  (A) zero vector  (B) unit vector  (C) Non zero vector  (D) equal to vector A

If A + B = A - B then vector B must be  (A) zero vector  (B) unit vector  (C) Non zero vector  (D) equal to vector A
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If A + B = A - B then vector B must be (A) zero vector (B) unit vector (C) Non zero vector (D) equal to vector A
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