`int_-1^3(6x^2+1)dx=?`

int_-1^1(x^2-3x+2)dx=?

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

int_(1)^(6)(3x-2)dx

int_(1)^(3)(2x+1)dx

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

int_-a^a(1+x^3)^(-1)dx= (A) 0 (B) 2int_0^a(1-x^6)^(-1)dx (C) 2int_0^a(1+x^3)^(-1)dx (D) 2int_0^a[1+(a-x^3)]^(-1)dx

(i) int_2^3 1/x dx (ii) int_1^2 1/x^2 dx (iii) int_1^e (dx)/x (iv) int_-1^1 (x+1) dx

int(x^(6))/(x^(2)+1)dx