Question

If x+1/x = √5 , find x4+1/x4​

Answer 1

x+1/x = 5 (x+1/x)² = x²+1/x²+2 (5)2 = x²+1/x²+2 25-2 = x²+1/x2 => 23

(x2+1/x2)2 = x4+1/x4+2 (23)2 = x^+1/x4+2 529-2 = x4+1/x4 527 = x*+1/x*

Answer 2

Step-by-step explanation:

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