Author: Ergasheva, Rayxona Chori qizi; Alimova, Rayhon Abdug’afforovna
Annotation: This article deals with number lines, d'Alembert's sign, Cauchy's sign. He is cited with a proof of the theorem and definitions. The solution of several examples is given.
Keywords: number series, d'Alembert's test, Cauchy's test, number series, convergence conditions, divergence conditions.
Pages in journal: 732 - 736
Kadirov Muhammadjon