The value of `int_0^oo(54 a)/((3+a+4y)^4)dy=`

int_(0)^(oo) (45a)/((3+a+a t)^(4))dt=

The value of int_0^oo (dx)/(1+x^4) is

The value of int_0^oo (dx)/(1+x^4) is

The value of int_(0)^(oo)(dx)/(1+x^(4)) is equal to

The value of int_(0)^(oo)(dx)/(1+x^(4)) is equal to

The value of int_(0)^(oo)(dx)/(1+x^(4)) is (a) same as that of int_(0)^(oo)(x^(2)+1dx)/(1+x) (b) (pi)/(2sqrt(2))( c) same as that of int_(0)^(oo)(x^(2)+1dx)/(1+x^(4))(d)(pi)/(sqrt(2))

The value of int_(0)^(oo) (dx)/((x^(2)+4)(x^(2)+9) ) is

The value of int_0^oo (dx)/(1+x^4) is (a) same as that of int_0^oo (x^2+1dx)/(1+x) (b) (pi)/(2sqrt2) (c) same as that of int_0^oo (x^2+1dx)/(1+x^4) (d) pi/sqrt2

The value of int_(0)^(oo) e^(-3x) x^(2) dx is

The value of int_o^oo int_0^oo e^(-(x^2+y^2)) dx