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Differential EquationsEasyFrobenius & Special Functions

Frobenius & Special Functions · Easy problem

The equation x2y′′+x(1+x)y′+(x−9)y=0x^2y'' + x(1 + x)y' + (x - 9)y = 0 has a regular singular point at x=0x = 0. Compute the sum of the squares of its two indicial roots.