Math Problem Statement
Докажите, что любая периодическая десятичная дробь представляет рациональное число через ряды
Solution
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Math Problem Analysis
Mathematical Concepts
Decimal Representation
Geometric Series
Rational Numbers
Formulas
x = N + p
p = \frac{b_1b_2 \dots b_n}{10^{k+n}} + \frac{b_1b_2 \dots b_n}{10^{k+2n}} + \dots
S = \frac{a_1}{1 - q}
Theorems
Sum of Infinite Geometric Series
Representation of Rational Numbers
Suitable Grade Level
Grades 9-12
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