Math Problem Statement

存在以下数列:9,13,21,29,x,53,求x的数值,x是一个整数

Solution

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Math Problem Analysis

Mathematical Concepts

Arithmetic Sequences
Difference Sequences

Formulas

a_n = a_1 + (n-1) * d

Theorems

Common difference of arithmetic sequence

Suitable Grade Level

Grades 7-9