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

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

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

If int_(0)^(1) (e^(x))/( 1+x) dx = k , then int_(0)^(1) (e^(x))/( (1+x)^(2)) dx is equal to

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

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

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

int e^(x)((x-2)/((x-1)^(2)))dx is equal to (i) (e^(x))/(x-1)+C (ii) (e^(x))/((x-1)^(2))+C( iii) (2e^(x))/((x-1)^(2))+C( iv )(e^(x)-1)/(x-1)+C

int e^x((x^2+1))/((x+1)^2)dx is equal to ((x-1)/(x+1))e^x+c (b) e^x((x+1)/(x-1))+c e^x(x+1)(x-1)+c (d) none of these

int e^x((x^2+1))/((x+1)^2)dx is equal to (a) ((x-1)/(x+1))e^x+c (b) e^x((x+1)/(x-1))+c e^x(x+1)(x-1)+c (d) none of these

The value of the integral int e^(tan^(-1) x) * ((1 + x + x^(2)))/((1 + x^(2))) dx is equal to