1.

How is " \[\overrightarrow{AB}\] is perpendicular to \[\overrightarrow{CD}\] " written symbolically?

A.  \[\overrightarrow{AB}\bot \overrightarrow{CD}\]   
B.  \[\overrightarrow{AB}||\overrightarrow{CD}\]    
C.  \[\overrightarrow{AB}\ne \overrightarrow{CD}\]                 
D.  \[\overrightarrow{AB}=\overrightarrow{CD}\]
Answer» B.  \[\overrightarrow{AB}||\overrightarrow{CD}\]    


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