Let ` veca, vecb , vecc` be three vectors of equal magnitude such that the angle

preview_player
Показать описание
Let ` veca, vecb , vecc` be three vectors of equal magnitude such that the angle between each pair is ` pi/3` . If ` |veca + vecb + vec| = sqrt6 , " then " |veca|=`
Рекомендации по теме