+ 282 สิน (r.8) The governing equation of a 2D problem Laplace's equation is given by Ou?(r.) = 0. A solution to the equ

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+ 282 สิน (r.8) The governing equation of a 2D problem Laplace's equation is given by Ou?(r.) = 0. A solution to the equation is given by u = [xln(r) - x + yo]. If the secondary field in the x and y = - direction is given by vx - in (r) and Vy vy , respectively. For a square boundary with unity side length, find the primary field u at the boundaries, if the secondary field is given by the v7 = [0, -16,0,9]. K K п TT