Evaluate ` (x^2 - sqrt(1 - x^2) )^4 + (x^2 + sqrt( 1- x^2) )^4`

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

Evaluate int_1^sqrt2 dx/(x^2sqrt(4-x^2))

Degree of the polynomial (x^(2)-sqrt(1-x^(3)))^(4)+(x^(2)+sqrt(1-x^(3)))^(4) is

Integrate : (a) int (sqrt(1-x^2) + sqrt(1+x^2) )/( sqrt(1-x^4) dx,

Evaluate: int(x^2-1)/(x^3sqrt(2x^4-2x^2+1))dx

Evaluate: int1/(sqrt(x^2-4x+2))\ dx

Evaluate int (x^(2)-sqrt(3x)+1)/(x^(4)-x^(2)+1)dx

if f:[1,oo)->[2,oo) is given by f(x)=x+1/x then f^-1(x) equals to : a) (x+sqrt(x^2-4))/2 b) x/(1+x^2) c) (x-sqrt(x^2-4))/2 d) 1+sqrt(x^2-4)

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

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