Apoint charge q_1=-4.00\; {\rm nc} is at the pointx = 0.600 meters, y = 0.800 meters, and a second pointcharge q_2=+6.00\; {\rm nc} is at the pointx = 0.600 meters, y = 0.

a)calculate the magnitude e of the net electric field at the origin due tothese two point charges.

b)what is the direction, relative to the negative x axis, of the net electric field at the origin due to these two pointcharges.