I need more practice in deciding if the series converges or diverges in using ratio tests, Cauchy-Hadamart`s tests and so on. Please, recommend me something worth. Thank you.
2026-04-24 23:12:56.1777072376
Can you give some websites tutorials or books about series?
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You simply can use Khan Academy`s courses to deepen your skills https://www.khanacademy.org/math/calculus-home/series-calc and for practice use this book http://www.karlin.mff.cuni.cz/~vybiral/MAII-2016/Demidovich-Problems-in-Mathematical-Analysis.pdf