3. Suppose that series anxn converges when x = -3 and diverges when x = 5. Which of the following must be true? (A) an converges. (B) an(-2)nconverges. (C) an(-5)ndiverges. (D) an6ndiverges.
3.Suppose that series anxn converge..-阿摩線上測驗
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anxn converges when x = -3 and diverges when x = 5. Which of the following must be true? 
an converges. 
an(-2)nconverges. 
an(-5)ndiverges. 
an6ndiverges.
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