`int(x)/(x^(2)sqrt(x^(4)-1))dx`

" "4."int(dx)/(x^(3)sqrt(x^(2)-1))

Evaluate :int(2x)/((1-x^(2))sqrt(x^(4)-1))dx

None of these int(2x)/((1-x^(2))sqrt(x^(4)-1))dx is equal to :( A) sqrt((x^(2)-1)/(x^(2)+1))+c(B)sqrt((x^(2)+1)/(x^(2)-1))(C)sqrt(x^(4)+1)(D) None of these

Evaluate: int(x)/((x^(2)+4)sqrt(x^(2)+1))dx

Evaluate: int(1)/((x^(2)-4)sqrt(x+1))dx

int(1)/((x-1)sqrt(x^(2)+4))dx

int(dx)/(x sqrt(x^(2)-4))

int(dx)/(x sqrt(x^(2)+4))

int(x^(2)-1)/((x^(2)+1)sqrt(x^(4)+1))dx

Evaluate: (i) int(e^(x))/(sqrt(4-e^(2x)))dx (ii) int(x^(2))/(sqrt(1-x^(6)))dx