Section 5.5: In these problems, find the recursion relation, the indicial equation and its roots,and the first four non-zero terms of the series of the solution corresponding to the larger root.If the roots do not differ by an integer, repeat for the smaller root.Hint: In treating equations whose second derivative term is a multiple of xy, it may be easiestto begin by multiplying the whole equation by x.75. x^2y"+ xy+(x^2-(1/9))y=0