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

If p= 7-4sqrt(3) , then (p^(2)+1)/(7p) =_____.

if a=(7+4sqrt(3))^(2005) and b=(7-4sqrt(3))^(2005) then (a+1)^(-1)+(b+1)^(-1)

If x=7+4sqrt(3) and xy=1, then (1)/(x^(2))+(1)/(y^(2))=64(b)134(c)194(d)(1)/(49)

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

If x=(7+5sqrt(2))^(1/3) -1/((7+5sqrt(2))^(1/3) , then the value of x^3+3x-14 is equal to 1 (b) 0 (c) 2 (d) 4

If x=7+4sqrt3 and xy=1 then the value of (1/x^2+1/y^2) is