Denklemleri Çöz Wolfram Alpha Model Doğrula (Kopyala ve Kullan)

Solve the differential equation #denklem with initial conditions #baslangic_kosullari. Provide: 1. General solution step by step. 2. Particular solution. 3. Plot the solution over #parametre_araligi. 4. Phase portrait if applicable. 5. Numerical approximation using NDSolve. 6. Stability analysis. 7. Sensitivity to parameters. Include all derivations, assumptions, and exportable plots.