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4. Use the method of reduction of order to find a second solution of the given differential equation. Find the general solution y(x) of the differential equation. Verify that y(x) is indeed the general solution by showing that y(x) is a linear combination of two solutions y₁ and y₂ whose Wronskian is nonzero. x²y" + xy' + (x² – 0.25)y = 0 x > 0 y₁(x) = x-¹/² sin x