Question

Three vectors a b and c are such that a =1, b =2, c =4 and a+ b+ c= 0 . then the value of 4

a. b+ 3

b. c+ 3

c. a is equal to

Answer 1

I think wrong question sum of 3 vectors is zero in triangle and also sum of two sides must be greater than the third
and here a+b=3 which is less than 4