integrate [(1-x)(x^2+a^2)(a arccos (a/sqrt(x^2+a^2))-x),{x,0,1},{a,0,1}]integrate [(1-x)(x^2+a^2)(a arccos (a/sqrt(x^2+a^2))-x),{x,0,1},{a,0,1}]

• Natural Language
• Math Input