The zero vector is denoted by:, , , , , Which of the following is a zero vector?, , , , , When the initial point and the terminal point coincide, we obtain:, A unit vector, A zero vector, An opposite vector, Collinear vectors, The magnitudes of the zero vector is:, 1, -1, 0, Undefined, By convention, the zero vector has which direction?, No direction, Opposite to every vector, The same direction as every vector, Perpendicular to every vector, Which statement is correct?, Zero vectors have different magnitudes., Zero vectors are not equal., All zero vectors are equal., The magnitude of a zero vector is 1., , , , , , , Arbitrary, Different from O, The same as O, On the x-axis, , Unique, Infinite, Does not exist, Depends on vector a, Which of the following is not a zero vector?, , , , .

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