2. Скаляр көбейтінді.
Екі вектордың скаляр көбейтіндісі деп сол векторлардың ұзындықтары мен екеуінің арасындағы бұрышының косинусының көбейтіндісін айтады:
а b = |а| |b| cosa^ b.
Анықтама бойынша скаляр көбейтінді скаляр шама болады.
Оның төмендегідей қасиеттері бар:
ab=ba
Егер a b болса, онда а b= 0.
Егер а= b болса, онда ab=а2=|а|2, яғни а2=|а|2.
Осыдан: |а|=| |.
а 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IEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQQmAAhBAYACEEBkAIgQEQ+gfEtKjk4sNNFgAAAABJRU5ErkJggg==) b = ( ab).
Достарыңызбен бөлісу: |