Question

(x+1/x)^2 + (x-1/x)^2

Answer 1

Answer:

2(x² + 1/x²) is your required answer.

Step-by-step explanation:

(x + 1/x)² + (x - 1/x)²

⇒ [ x² + 1/x² + 2 ] + [ x² + 1/x² - 2 ]

⇒ 2x² + 2/x²

⇒ 2(x² + 1/x²)

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