Which of the following conditions imply that the real number x is rational ? `(i) x^(1||2)|'is

Which of the following conditions imply that the real number x is rational ? `(i) x^(1//2)\"is rational\"\" \"(ii) x^(2)and x^(5) \"are rational\"\" \"(iii) x^(2)and x^(4)\"are rational\"`

x^(1//2)\"is