An electron is located at coordinates (-a, a); another electron is located at coordinates (-a, -a); a third electron is located at coordinates (a, -a), as shown in the figure below. Each electron has a negative charge q = -e. The magnitude of the electron charge e can be considered a given quantity. Y -e -a -e + a 0 +a e X a) Calculate the net Electric Field vector at the origin (0,0). Write your result in vector notation using the unit vectors i and j. Make sure the vector components are in terms of the given quantities and given constants only (that means a, e, k, co, note k= and co are always given constants that you can leave as they are in your result). Show clearly all the the steps of your reasoning.