1. The problem statement, all variables and given/known data A rod of length 25 cm has a uniform linear charge density of 7 μC/m. Determine the Electric Field at a point P located at a perpendicular distance 69 cm along a line of symmetry of the rod. 2. Relevant equations E=k*charge density(integral(dx/(d^2+x^2)^3/2) 3. The attempt at a solution x=.69tan(theta) dx=(.69)sec^2(theta)dtheata Thus, .125=pi/18 Hence, I have found =(9*10^9)*(7*10^-6)*2.1004*(sin(pi/18)-sin(-pi/18)) My final answer is 45956.1 but it's wrong. Thank you for any input at all. Also, I'm not sure what mode is my calculator suppose to be on.