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

int x(1+3x^2)^(5/2) dx

(i) int_1^3 (3x)/(9x^2-1) dx (ii) int_2^3 x/(x^2+1) dx

(i) int_0^1 (dx)/sqrt(1-x^2) (ii) int_0^1 (dx)/sqrt(1+x^2) (iii) a int_1^sqrt3 (dx)/(1+x^2) b int_0^1 (dx)/(1+x^2) (iv) int_0^(2//3) (dx)/(4+9x^2) (v) int_0^1 x/(x^2+1)dx (vi) int_2^3 x/(x^2+1) dx

(i) int (3x^2)/(x^6+1) dx (ii) int (3x)/(1+2x^4) dx

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

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

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

Evaluate int_(1)^(3)|x^(2)-2x|dx

Evaluate int_(1)^(3)(x^(2)-2x)dx