island736 island736 16-02-2024 Mathematics contestada Integrate the following expression: (x²dx)/((49+x²)²)A) ∫(x²dx)/((49+x²)²)B) ∫(x²dx)/(49+x²)²C) ∫(x²)/(49+x²)²dxD) ∫(x²)/(49+x²)²