(i) \((\text{x}^{2}+\frac{1}{\text{x}{^2}})\)
We know that,
From formula (a + b)2 = a2 + b2 + 2ab
So, by putting the values , we get,
(ii) \((\text{x}^4+\frac{1}{\text{x}^4})\)
We know that,
From formula (a + b)2 = a2 + b2 + 2ab
So, by putting the values , we get,