" Find "int((1-x)/(1+x^(2)))^(2)e^(x)dx

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

Evaluate the following integrals: int (1-x)/((1+x^2))^2 e^x dx

Evaluate int(x-1)/(x^(2))e^(x)dx

Evaluate: int(2-x)/((1-x)^(2))e^(x)dx

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

Evaluate the following: (i) int(sec^(2)x)/(3+tanx)dx " (ii) " int(e^(x)-e^(-x))/(e^(x)+e^(-x))dx (iii) int(1-tanx)/(1+tanx)dx " (iv) " int(1)/(1+e^(-x))dx

Evaluate: int ((x - 1)/(x^2 + 1))^2 e^x dx