Question

x is equal to 1 upon 2 + under root 5 then find the value of x square + 4 x minus one​

Answer 1

Answer:

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Hiii Friend !!! ( X + 1/X ) = ✓5. Therefore, ( X + 1/X )² = (✓5)² ( X )² + 1/X² + 2 × X × 1/X = 5. X² + 1/X² + 2 =5. X² + 1/X² = 5- ...

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