Question

pls and it friends ?

Answer 1

The required answer.....!!!!!!!!!!

Answer 2

Here  is ur answer,

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x⁴ + 1/x⁴ = ( x² + 1/x²)² - 2· x² · 1/x²       [ using a² + b² = ( a+b)² - 2 ab]

     ⇒  7 = ( x² + 1/x² )² - 2

    ⇒  ( x² + 1/x²)² = 9

So

x² + 1/x² = 3

Hope  ...It helps u.

Thank u.

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