Question

Three coplaner vectors in arbitrary units are given by A^-> =4i^{^} +2j^{^} - 3k^{^} ,B^-> = i^{^} + j^{^} + 3k^{^} and C^-> = 4i^{^} +5j^{^} +3k^{^} , the resultant is 

Answer 1

resultant vector =A^-> +B^->+ C^->=(4i^{^} +2j^{^}- 3k^{^})+(i^{^}+j^{^}+3k^{^})+(4i^{^} +5j^{^}+3k^{^})

                                                  =9i^{^}+8j^{^}+3k^{^}