Question

if X + 1 by X equal to root 5 then find the values of x square + 1 by x square

Answer 1

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( 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 = 5-2



X² + 1/X² = 3




Hence,



X² + 1/X² = 3





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Answer 2

Answer:

Therefore,

( X + 1/X )² = (✓5)²

( X )² + 1/X² + 2 × X × 1/X = 5

X² + 1/X² + 2 =5

X² + 1/X² = 5-2

X² + 1/X² = 3

Hence,

X² + 1/X² = 3

Step-by-step explanation: