`x=5-2sqrt(6)`, find `x^2+1/(x^2)`

If x=5-2sqrt(6), find the value of x^(2)+(1)/(x^(2))

If x = 5 - 2sqrt6 , find: x - 1/x

If x = 5 - 2 sqrt6 , find 1/x .

If x=5+2 sqrt(6) and tan theta=(1)/(2) ( sqrt(x)+(1)/(sqrt(x))) then sec^(2) theta+ sin^(2) theta=

If x=sqrt6+sqrt5 then find x^2+1/x^2-2

If the x= 5 +2sqrt6 find the value of x^(2) + (1)/(x^(2)) and x^(3) + (1)/(x^(3))

If x= 5 - 2 sqrt6 , find the value of : x^(2) +(1)/(x^(2))

(i) If p(x)=3x^(2)-5x+6 , find p(2) . (ii) If q(x)=x^(2)-2sqrt(2)x+1 , find q(2sqrt(2)) . (iii) If r(x)=5x-4x^(2)+3 find r(-1) .

If x=5+2sqrt(6), then sqrt((x)/(2))-(1)/(sqrt(2x))= (a) 1 (b) 2 (c) 3 (d) 4

If x=sqrt(6)+sqrt(5) then x^(2)+(1)/(x^(2))-2=