(x)/((x^(2)+4)sqrt(x^(2)+1))

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(x^(4)-1)/(x^(2))sqrt(x^(4)+x^(2)+1)dx equal to (A) sqrt((x^(4)+x^(2)+1)/(x)+c(B)sqrt(x^(4)+2-(1)/(x^(2)))+c)sqrt((x^(4)-x^(2)+1)/(x))+c

If x+sqrt(x^(2)-1)+(1)/(x+sqrt(x^(2)+1))=20 then x^(2)+sqrt(x^(4)-1)+(1)/(x^(2)+sqrt(x^(4)-1))=

sqrt(x^(2)+x+4)+sqrt(x^(2)+x+1)=sqrt(2x^(2)+2x+4)

If f(x)=sqrt(4-x^(2))+sqrt(x^(2)-1), then the maximum value of (f(x))^(2) is

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

The range of the function f(x)=sqrt(4-x^(2))+sqrt(x^(2)-1) is

Let f(x) be defined in [-2,2] by f(x)={max(sqrt(4)-x^(2)),sqrt(1+x^(2))),-2<=x<=0;min(sqrt(4-x^(2)),sqrt(1+x^(2)),0

int(x^(4)-1)/(x^(2)sqrt(x^(2)+x^(2)+1))dx=sqrt(x^(2)+(1)/(x^(2))+1)+C(sqrt(x^(2)+x^(2)+1))/(x^(2))+C(sqrt(x^(4)+x^(2)+1))/(x)+C(d) none of these