`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`

int_-1^1 (sinx+x^2)/(3-|x|)dx= (A) 0 (B) 2int_0^1 sinx/(3-|x|)dx (C) 2int_0^1 x^2/(3-|x|)dx (D) 2int_0^1 (sinx+x^2)/(3-|x|)dx

int_0^1 x^2(1-x)^(3/2) dx=

int_(0)^(3)(x^(2)+1)dx

int_(0)^(3)(x^(2)+1)dx

int_(0)^(1)(1+2x)dx

(i) int_1^4(x^2-x)dx (ii) int_0^2(x^2+1) dx

int_(-1)^(1)x^(3)dx=0

(i) int_0^1 x sqrt(2-x) dx (ii) int_0^1 x^2(1-x)^n dx

int_(0)^(1)(x^(1/3)+1)^(2)dx

int_(0)^(1)|3x-1|dx=