不好意思请教一下 因为之前在数学版问不到答案 所以在这里问 这应该也算是微积分的范围吧 谢谢 Let a and b be positive numbers and form the series a-b/2+a/3-b/4+a/5-b/6+.... (a)Express this series in Σnotation. (b)For what values of a and b is this series absoultely convengent?Conditionally convergent? 希望有人能帮我解答 感激不尽 --

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