来自韩雅华的问题
【LetXandYbevectorsinR^3whicharenon-collinearwiththeorigin,andletZbeavectorinR^3thatdoesnotlieontheplanespannedbyXandY.ThenitispossibletoexpressanyothervectorVinR^3asalinearcombinationofX,Y,andZ.】
LetXandYbevectorsinR^3whicharenon-collinearwiththeorigin,andletZbeavectorinR^3thatdoesnotlieontheplanespannedbyXandY.ThenitispossibletoexpressanyothervectorVinR^3asalinearcombinationofX,Y,andZ.
