Trigonometry -select only one of the following statements and discuss its veracity.

select only one of the following statements and discuss its veracity.

1. It is possible for the sum of two nonzero vectors to equal zero.
    
2. Every real number is a complex number.
    
3. The sum of a complex number and its conjugate is a real number.
    
4. i = cos π + i sin π.
    
5. 1 = cos π + i sin π.

In order to earn the full credit (100%) for this assignment, you must:

•  use concepts correctly and precisely in your response. (60%)