question_answer 23)

In triangle ABC given below, which of the following is not true.       (a)       (b)       (c)          (d)   

Answer:

By triangle law of vector addition                            ?. (1)                    is true.       From (1),        true.       From (1),        is also true.       Also from (1),                   is also true.       Hence (c) is not true.