int(1+x+x^(2))/(x^(2)(1+x))

int((1+x+x^(2))/( 1+x^(2))) e^(tan^(-1)x) dx is equal to

int(1+x+x^(2))/(1+x^(2))e^(tan^(-1)x)dx=

int(3x^(2)+1)/(x(x^(2)+1))dx

int((x+1)^(2)x)/(x(x^(2)+1)) is equal to

int((x+1)^(2)x)/(x(x^(2)+1)) is equal to

int((1-x^(-2))/(x^(1/2)-x^(-1/2))-(2)/(x^(3/2))+(x^(-2)-x)/(x^(1/2)-x^(-1/2)))dx

int((1-x^(- 2))/(x^(1//2)-x^(-1//2))-2/(x^(3//2))+(x^(- 2)-x)/(x^(1//2)-x^(-1//2)))dx

Observe the following statements A : int (((x^(2)-1)/(x^(2))).e^((x^(2)+1/x)) dx = e^((x^(2)+1)/x) + c R: int f^(')(x).e^(f(x)) dx = f(x) + c Then which of the following is true?