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## Homework Statement

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.

## Homework Equations

E = -grad(V)

E = -dV/ds

## 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.