chapter - 6 - vector algebra chapter - 6 - vector algebra - ex: 6.1 chapter - 6 - vector algebra - ex: 6.2 chapter - 6 - vector algebra - ex: 6.3 chapter - 6 - vector algebra - ex: 6.4 chapter - 6 - vector algebra - ex: 6.5 chapter - 6 - vector algebra - ex: 6.6 chapter - 6 - vector algebra - ex: 6.7 chapter - 6 - vector algebra - ex: 6.8 chapter - 6 - vector algebra - ex: 6.9