If `x=2sqrt2+sqrt7` then `1/2(x-1/x)` is

If x=7+5sqrt(2) then (x^(2)+(1)/(x^(2)))=?

If x = sqrt7 + sqrt6 , then find the simpliest value of (a) x - (1)/(x) , (b) x + (1)/(x) , (c) x^(2) + (1)/(x^(2)) , (d) x^(3) + (1)/(x^(3))

If x = sqrt(7)+(1)/(sqrt(7)) , then the value of (128)^(x^(2)) is-

If x = sqrt(7)+(1)/(sqrt(7)) , then the value of (128)^(x^(2)) is-

If x = sqrt(7)+(1)/(sqrt(7)) , then the value of (128)^(x^(2)) is-

If x = 3 + sqrt7 , find x^2 + 1/x^2

If 2x = sqrt(a) - (1)/(sqrt(a)) , then the value of (sqrt(x^(2) + 1))/(x + sqrt(x^(2) +1)) is