ज्ञात करें `int(x^4+1)/(x^2+1)`

Explanation

`int(x^4+1)/(x^2+1)dx=int((x^2-1)+2)/(x^2+1)dx=int[(x^4-1)/(x^2+1)+2/(x^2+1)]`
`int[x^2-1+2/(x^2+1)]dx=1/3x^3-x+2tan^(-1)x+c`.