Question

(a-1/a)^2+(a+1/a)^2​

Answer 1

Answer:

$({a - \frac{1}{a} })^{2} + ( {a + \frac{1}{a} })^{2} \\ = {a}^{2} - 2.a. \frac{1}{a} + \frac{1}{ {a}^{2} } +{a}^{2} + 2.a. \frac{1}{a} + \frac{1}{ {a}^{2} } \\ = 2 {a}^{2} + \frac{2}{ {a}^{2} }$