`| x^2 -1 | <= | 2x -1 |`

The HCF of (x^(2)-1)^(2),(x+1) and (x^(2)-1) is

IfI=int(dx)/(x^3sqrt(x^2-1)),t h e nIe q u a l s 1/2((sqrt(x^2-1))/(x^3)+tan^(-1)sqrt(x^2-1))+C , 1/2((sqrt(x^2-1))/(x^2)+xtan^(-1)sqrt(x^2-1))+C , 1/2((sqrt(x^2-1))/x+tan^(-1)sqrt(x^2-1))+C , 1/2((sqrt(x^2-1))/(x^2)+tan^(-1)sqrt(x^2-1))+C

IF x^2+x+1,2x+1,x^2-1 are the sides of a triangle then its largest angle is

If (x+sqrt(x^2-1))/(x-sqrt(x^2-1))+(x-sqrt(x^2-1))/(x+sqrt(x^2-1))= 14 ,then find the value of x.

The factor of x^8 + x^4 +1 are (A) (x^4 + 1 - x^2), (x^2 +1 +x), (x^2 + 1 - x ) (B) x^4 + 1 -x^2 , (x^2 - 1 + x), (x^2 +1 + x) (C ) (x^4 - 1 + x^2, (x^2 - 1 + x), (x^2 + 1 + x) (D) (x^4 -1 + x^2), (x^2 + 1 - x), (x^2 + 1 +x)