不好意思請教一下 因為之前在數學版問不到答案 所以在這裡問 這應該也算是微積分的範圍吧 謝謝 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? 希望有人能幫我解答 感激不盡 --

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