[int(2x)/((1-x^(2))sqrt(x^(4)-1))dx=],[[" 1) "sqrt((x^(2)+1)/(x^(2)-1)+c)," 2) "sqrt((x^(2)-1)/(x^(2)+1)+c)," 3) "sqrt(x^(4)-1)+c]]

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

int(x^(2)-1)/((x^(2)+1)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

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

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

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

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

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

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

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