Math Problem Statement
زبان ریاضی این مجموعه چیست ؟
Solution
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Math Problem Analysis
Mathematical Concepts
Sequences
Geometric Series
Algebra
Formulas
R_n = \frac{7(10^n - 1)}{9}, where n = 1, 2, 3, \ldots
Theorems
Formula for repeated digit sequences
Suitable Grade Level
Grades 9-12
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