The bounded solution of Laplace's equation Urr + O outside the circle r 3 which satisfies the boundary condition u(3, 0) 4 sin(30) + 3 cos(40) is u(r, 0) + Er "[a, cos(ne) + b, sin(nd)], where п-1 a)...

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Extracted text: The bounded solution of Laplace's equation Urr + O outside the circle r 3 which satisfies the boundary condition u(3, 0) 4 sin(30) + 3 cos(40) is u(r, 0) + Er "[a, cos(ne) + b, sin(nd)], where п-1 a) None of these 27: an = b. O otherwise b) b ao = 10, b3 a4 27 O otherwise c) ao 10, b3 = -4, a4 = 3, an bn O otherwise d) ao 10, az = -4, b4 = 3, an 108, a4 243, an = bn = 0 otherwise e) ao 10, b3