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\xrightarrow[{A }]{},\xrightarrow[B]{},\xrightarrow[{C }]{} are vectors each having a unit magnitude .if \xrightarrow[A]{}+\xrightarrow[B]{}+\xrightarrow[C]{}=0, then \xrightarrow[A]{}.\xrightarrow[B]{}+\xrightarrow[B]{}.\xrightarrow[C]{}+\xrightarrow[C]{}.\xrightarrow[A]{} will b |
| Answer» \xrightarrow[{A }]{},\xrightarrow[B]{},\xrightarrow[{C }]{} are vectors each having a unit magnitude .if \xrightarrow[A]{}+\xrightarrow[B]{}+\xrightarrow[C]{}=0, then \xrightarrow[A]{}.\xrightarrow[B]{}+\xrightarrow[B]{}.\xrightarrow[C]{}+\xrightarrow[C]{}.\xrightarrow[A]{} will b | |