(a) Determine the orthogonal trajectories of the family of electric field lines described by the family...
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(a) Determine the orthogonal trajectories of the family of electric field lines described by the family (x- c) + y? - c2(3x- c) = x. (b) Find the complete solution of the differential equation y" + 9y = -5x2 + 4cos2x (c) Solve the general solution y' + (cotx)y xcscx (a) Determine the orthogonal trajectories of the family of electric field lines described by the family (x- c) + y? - c2(3x- c) = x. (b) Find the complete solution of the differential equation y" + 9y = -5x2 + 4cos2x (c) Solve the general solution y' + (cotx)y xcscx
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