" (ii) "int(1)/((x^(2)+1)(x^(2)+2))dx

(i) int((x^(2) - 1)/(x^(2) + 1))dx , (ii) int ((x^(6)- 1)/(x^(2) + 1))dx (iii) int ((x^(4))/(1+x^(2)))dx , (iv) int((x^(2))/(1+x^(2)))dx

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

Evaluate: (i) int(1)/((x+1)(x^(2)+2x+2))dx (ii) int(x^(5))/(sqrt(1+x^(3)))dx

int_(1)^(2)(1)/(x^(2)-2x+2)dx =

int_(1)^(2)(1)/(x^(2)-2x+2)dx =

" (1) "int(2x^(2)+1)/(1-2(x^(2)+4))dx

Evaluate: int_(1)^(2)(1)/((x+1)(x+2))dx( ii) int_(1)^(2)(1)/(x(1+x^(2)))dx

Evaluate : (i) inte^(x)((1)/(x)-(1)/(x^(2)))dx (ii) inte^(x)((1)/(x^(2))-(2)/(x^(3)))dx (iii) inte^(x){sin^(-1)x+(1)/(sqrt(1-x^(2)))}dx (iv) inte^(x)(tanx+logsecx)dx