x=sqrt(7+4sqrt(3))," prove that "x+1/x=4

If x= (7+4sqrt(3)), prove that x+1//x = 14

If x= (7+4sqrt(3)), prove that x+1//x= 14

If x=sqrt(7+4sqrt(3)), then x+(1)/(x)=

If x = sqrt(7 - 4 sqrt(3)) , then x + (1)/(x) is equal to :

If y = sqrt(1+sqrt(1+x^(4))) , prove that y * (y^(2) - 1)(dy)/(dx) = x^(3) .

If y = sqrt(1+sqrt(1+x^4)) , prove that y(y^2-1)dy/dx = x^3

If y=sqrt(1+sqrt(1+x^(4))), prove that y(y^(2)-1)(dy)/(dx)=x^(3)

if x=sqrt(7+4sqrt(3)) then x+(1)/(x)

If x = (7+ 4 sqrt(3)) then (x+(1)/(x))= ?

given x=(sqrt(7)+sqrt(3))/(sqrt(7)-sqrt(3)),y=(sqrt(7)-sqrt(3))/(sqrt(7)+sqrt(3)) find the value of x^(4)+y^(4)+(x+y)^(4)