The value of `int_0^1(x^4(1-x)^4)/(1+x^2)dx` is/are (a)`(22)/7-pi` (b) `2/(105)` (c)`0` (d) `(71)/(15)-(3pi)/2`

The value of int_(0)^(1)(x^(4)(1-x)^(4))/(1+x^(2))dx is/are (a) (22)/(7)-pi( b) (2)/(105)( c) 0 (d) (71)/(15)-(3 pi)/(2)

The value of int_(0)^(pi//2)(dx)/(1+tan^(3)x) is

int_(0)^(pi//4) (1)/(1+cos 2x)dx

int_(0)^( pi/8)(1)/(1+4x^(2))dx=?

The value of int_(0)^(1)4x^(3){(d^(2))/(dx^(2))(1-x^(2))^(5)}dx is

The value of int_(0)^(1) 4x^(3){(d^(2))/(dx^(2))(1-x^(2))^(5)}dx is

The value of int_(0)^(1)tan^(-1)((2x-1)/(1+x-x^(2)))dx is (A) 1 (B) 0(C)-1(D)(pi)/(4)

7(int_(0)^(1)(x^(4)(1-x)^(4)dx)/(1+x^(2))+pi) is equal to