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If x^2 = k + 1, then x^4 - 1 / x^2 + 1 =

If x^2 = k + 1, then x^4 - 1 / x^2 + 1 =
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If x^2 = k + 1, then x^4 - 1 / x^2 + 1 =

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User CafeHey
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1 Answer

1 vote

Explanation:

Since (x² + 1)(x² - 1) = x⁴ - 1,

(x⁴ - 1)/(x² + 1) = x² - 1 = k.

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User Skim
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