if `a=(7+4sqrt3)^2005` and `b=(7-4sqrt3)^2005` then `(a+1)^-1+(b+1)^-1`

If a=7-4sqrt3 then a^(1/2)+a^(-1/2)=

If x= (7+4sqrt3) , then (x+1/x) =

sqrt(7+4sqrt3) - sqrt(7-4sqrt3) =

If a = (sqrt(5) + sqrt(4))^(-3) and b = (sqrt(5) - sqrt(4))^(-3) , then the value of: (a+1)^(-1) + (b+1)^(-1) is:

If x = 7 + 4 sqrt(3) , y = 7 - 4 sqrt(3) , find the value of (1)/(x^(2)) + (1)/(y^(2)) .

If x= 7+4sqrt3 then the value of x-1/x is

If (4+3sqrt(3))/(sqrt(7+4sqrt(3)))=a+sqrt(b), then (a,b) is