int_(1)^(oo)(dx)/(x^(1.4))

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)/(1+x^(4)) is equal to

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

int_(1)^(oo)(dx)/(x^(2))

If I_(1)=int_(0)^(oo) (dx)/(1+x^(4))dx and I_(2)=underset(0)overset(oo)int x^(2)(dx)/(1+x^(4))"then"n (I_(1))/(I_(2))=

If I_(1)=int_(0)^(oo) (dx)/(1+x^(4))dx and I_(2)underset(0)overset(oo)int dx"then"n (I_(1))/(I_(2))=

int_(0)^(oo)(x)/(1+x^(4))dx=

Let u=int_(0)^(oo)(dx)/(x^(4)+7x^(2)+1) and v=int_(0)^(x)(x^(2)dx)/(x^(4)+7x^(2)+1) then

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