Practicing Success
If x2 - 33x + 1= 0 and x > 1, then the value of x2 + \(\frac{1}{x^2}\) will be: |
1087 1089 1078 1098 |
1087 |
If x2 - 33x+ 1= 0 Divide by x on both sides, x + \(\frac{1}{x}\) =33 x2 + \(\frac{1}{x^2}\) = 332 - 2 = 1087
If x + \(\frac{1}{x}\) = a x2 + \(\frac{1}{x^2}\) = a2 - 2 |