Let E(r) : Calculate the line integral | E(r) - dr along the path a bc in the following two straight line segments: ra = (xa, Ya, 0), r, = (xa, Ye, 0), re = (xe, Ye, 0) %3D %3D with (ra, Ya) = ra(cos 0, sin 0), and (re, Ye) = re(cos 0, sin 0).
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