Two vectors \[\overrightarrow{A}\] and \[\overrightarrow{B}\] are at r – McqOptions

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1.	Two vectors \[\overrightarrow{A}\] and \[\overrightarrow{B}\] are at right angles to each other, when [AIIMS 1987]
A.	\[\overrightarrow{A}+\overrightarrow{B}=0\]
B.	\[\overrightarrow{A}-\overrightarrow{B}=0\]
C.	\[\overrightarrow{A}\times \overrightarrow{B}=0\]
D.	\[\overrightarrow{A}\,.\,\overrightarrow{B}=0\]
Answer» E.

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