(a) Using a power series appro ach about the point a= 0, show that the general solution of the ODE (22- 2) y" – 2ry– 2y = 0 is 1(1- 1 y(x) = A -I'+. 630 +B [r 12 360 60 where A and B are const ant s. St at e the domain of validity of this solution.

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