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If $\vec{A} \times \vec{B} = \vec{B} \times \vec{A}$ then the angle between A and B is

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Correct option is A

A→×B→=B→×A→ or (A→×B→)−(B→×A→)=0 or (A→×B→)+(A→×B→)=0 or 2(A→×B→)=0or2ABsinθn^=0 . AS A≠0 nor B≠0 ,So sinθ=0 . Hence θ=00 or π

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If A→×B→=B→×A→ then the angle between A and B is

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If $\vec{A} \times \vec{B} = \vec{B} \times \vec{A}$ then the angle between A and B is