If a - \(\frac{1}{a - 2}\) = 4
Then find , (a - 2)2 + \(\frac{1}{(a - 2)^2}\)
Answer & explanation
Correct answer: option 2
Given = a - \(\frac{1}{a - 2}\) = 4
By subtracting 2 on both sides we get,
(a - 2) - \(\frac{1}{a - 2}\) = 4 - 2 = 2
(a - 2)2 + \(\frac{1}{(a - 2)^2}\) = 22 + 2 = 6
If x - \(\frac{1}{x}\) = a
then, x2 + \(\frac{1}{x^2}\) = a2 + 2