Two vectors A and B have equal magnitude and perpendicular to each other . Then the vector A + B is perpendicular to - (A)A×B (B)A-B (C)3A-3B(D)ALL OF THESE

The resultant of the vectorsl,, willl lie along the diagonal of the square formed withandas adjacent sides.willl be along the diagonal of the square with one of the side reverse about the point of intersection of the vectors. And hence the two vectors will be perpendicular to each other. Also only the magnitudeis larger than that of, but the direction is same, and so it is also perpendicular to.
Alsois perpendicular to the plane containingand.

Hence all of these are correct answers.