$\overrightarrow{A}$ is a vector quantity such that $\left|\overrightarrow{A}\right|$  = non-zero constant. Which of the following expression is true for $\overrightarrow{A}$ $\stackrel{}{}$ ?

<p><span contenteditable="false"> <math> <mrow> <mover accent="true"> <mi>A</mi> <mo>→</mo> </mover> <mo>×</mo> <mover accent="true"> <mi>A</mi> <mo>→</mo> </mover> <mo>=</mo> <mi>A</mi> <mi>A</mi> <mi>s</mi> <mi>i</mi> <mi>n</mi> <mi>θ</mi> <mover accent="true"> <mi>n</mi> <mo>^</mo> </mover> </mrow> </math> </span></p><p><span contenteditable="false"> <math> <mrow> <mo>=</mo> <mi>A</mi> <mi>A</mi> <mi>s</mi> <mi>i</mi> <mi>n</mi> <mn>0</mn> <mo>°</mo> <mover accent="true"> <mi>n</mi> <mo>^</mo> </mover> </mrow> </math> </span></p><p>= 0 [since Angle between the vectors are zero degree]</p><p><span contenteditable="false"> <math> <mrow> <mover accent="true"> <mi>A</mi> <mo>→</mo> </mover> <mo>×</mo> <mover accent="true"> <mi>A</mi> <mo>→</mo> </mover> <mo>=</mo> <mn>0</mn> </mrow> </math> </span></p>

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