Question

LEl equation. 8. Consider the equation y" + xy' + y = o. a. Pind its general solution y E cnx in the form y Ayx)By2) where y1 and y2 are power series b. Use the ratio test to verify that the two series y, and yp converge for all x. Write out the theozn in the book both series would converge. 2 , and use this fact c. Show that y,(x) is the series expansion of e , to·ind a second ǐn dependent solution by reduction of order. Convince yourself that this second solution is the function y2(x) found in (a).

Answer 1

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