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If a - \(\frac{1}{a - 9}\) = 26 Then find , (a - 9)2 + \(\frac{1}{(a - 9)^2}\) |
300 291 310 302 |
291 |
Given = a - \(\frac{1}{a - 9}\) = 26 By subtracting 9 on both sides we get, (a - 9) - \(\frac{1}{a - 9}\) = 26 - 9 = 17 (a - 9)2 + \(\frac{1}{(a - 9)^2}\) = 172 + 2 = 291
Note - if x - \(\frac{1}{x}\) = a then x2 + \(\frac{1}{x^2}\) = a2 + 2 |
