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GAIC Math 2024 Problem 66

  • Answer

Given sequence {an}\{a_n\} satisfying a1=a,an+1=2(an+1an)−3a_1=a, a_{n+1}=2(a_n+\frac{1}{a_n})-3. If an+1>an(n∈Z+)a_{n+1} > a_n (n \in Z_{+}). The range of real number aa is _____.

Dataset text MathOdyssey. Open licence.

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(0,12)∪(2,+∞)(0,\frac{1}{2}) \cup (2,+\infty)

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