" 16.(i) "int(dx)/((x+1)^(2)(x^(2)+1))

I=int(1)/((x+1)sqrt(x^(2)-1))dx

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

Evaluate: (i) int(a^(x))/(sqrt(1-a^(2x)))dx (ii) int(2x)/(sqrt(1-x^(2)-x^(4)))dx

I= int (dx)/( x^(2) + x+1)

I=int(1)/(x^(3)+x^(2)+x+1)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(dx)/(sqrt(1-16x^2) =

Evaluate: (i) int(1)/(4+9x^(2))dx (ii) int(1)/(9x^(2)-4)dx (iiii) int(1)/(16-9x^(2))dx