1. The problem statement, all variables and given/known data Let V be the set of all complex-valued functions, f, on the real line such that f(-t)= f(t) with a bar over it, which denotes complex conjugation. Show that V, with the operations (f+g)(t)= f(t)+g(t) (cf)(t)=cf(t) is a vector space over the field of real numbers. 2. Relevant equations 3. The attempt at a solution I don't know what complex conjugation means, so I have no idea where to start with this.