Question

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If (x+1/x) =4, find the values of
i) (x2+1/(¬x^2 )
ii) (x4+1/x^4 )​​

Answer 1

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2) x + 1/x = 4

X²+1/x² +2 =16

x²+1/x²= 14

x^4+1/x^4 +2 = 14² = 196

x^4+1/x^4 = 194