the indicial roots of the singularity. xảy" + (1.5x+x2)y −0.5y=0 a. (r+1)(r-2) = 0 b. (r+ 1)(2r-1)=0 c. (r-1)(2r-1) = 0 d. (r-1)(2r+ 1) = 0 a Ob d

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