Math Problem Statement
Dari suatu barisan aritmetika diketahui suku ke-5 adalah 22 dan suku ke-12 adalah 57. Suku ke-15 barisan ini adalah ...
Solution
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Math Problem Analysis
Mathematical Concepts
Arithmetic Sequences
Linear Equations
Formulas
Un = a + (n-1)d
Theorems
Arithmetic Sequence Formula
Suitable Grade Level
Grades 8-10
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