If x2 - 7x + 1= 0  and x > 1, then the value of x2 + \(\frac{1}{x^2}\) will be:

49 45 34 47

47

If x2 - 7x + 1= 0 Divide by x on both sides, x +  \(\frac{1}{x}\) = 7 x2 + \(\frac{1}{x^2}\)  = 72 - 2 = 47   If x + \(\frac{1}{x}\) = a then, x2 + \(\frac{1}{x^2}\) = a2 - 2