If `x=3+sqrt2` then find whether `x-1/x` and `x^2+1/x^2` is rational or irrational

If x= 3+ 2sqrt2 then find the value of x+1/x .

if x=3+2sqrt(2) then find out x+(1)/(x)

If x=3+2sqrt(2), check whether x+(1)/(x) is rational or irrational.

If x = 3 + 2sqrt(2) check whether x+(1)/(x) is rational or irrational.

If x = 3 + 2 sqrt2 , then find the value of x + (1)/(x)

If x= 3 + 2 sqrt2 , find x- (1)/(x)

If x = 3 + 2 sqrt2 , find x + 1/x .

If x= 3 + 2 sqrt2 , find (x- (1)/(x))^(3)

If x= 3 + 2 sqrt2 , find (1)/(x)

In the following equations, find whether variables x, y, z etc. represent rational or irrational numbers x^(2)=7