Question

x^2+1/x^2-1
please answer this ​

Answer 1

Answer:

x⁴ = 1

Step-by-step explanation:

x²+1/x²-1 = 0

(x²+1)(x²-1) = 0

x²(x²-1)+1(x²-1) = 0

x⁴-x²+x²-1 = 0

x⁴-1 = 0

x⁴ = 1

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Answer 2

Step-by-step explanation:

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