Consider an equilateral triangle, inscribed in a circle of
radius a, with a point charge q at each vertex. The electric field
is zero at the center, but surprisingly there are three other
points inside the triangle where the field is also zero. Where are
they? Find the distance from these points to the center of the
circle.
Please just get the answer to E in terms of a, x, and y. I only
need you to solve up to...