1. The problem statement, all variables and given/known data The electric potential in a region of space is , where x and y are in meters. What is the strength of the electric field at (x,y)=(2.1m,2.7m)? The electric force is in V/m. 2. Relevant equations E = -grad(V) E = -dV/ds 3. The attempt at a solution I know that i have to find the partial derivatives of the x and the y but im not sure on how to get the answer from the equation given. I was thinking of making the square root into the exponential of 1/2 and then raising that to -1 to get ride of the fraction and then taking the derivatives of that but i keep getting the wrong answer. Anybody have suggestions of help they can give me please. Thanks.