Question: Let f = u + iv be a continuous function and y(t) = x(t) + iy(t) be a piecewise smooth curve. Show that Re ([

Let f = u + iv be a continuous function and y(t) = x(t) + iy(t) be a piecewise smooth curve. Show that Re ([ =)dz = [(udx- ody) and Im f(z) dz) = [ (vax + udy). Here, dx = x'(t) dt, dy = y'(t) dt

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