Math Problem Statement
tentukan jumlah 80 suku pertama deret aritmatika berikut ini: 5+1+8+5+11+9, dengan cakaran dan mudah di pahami
Solution
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Math Problem Analysis
Mathematical Concepts
Arithmetic Sequence
Sum of Arithmetic Series
Formulas
S_n = n/2 * (2a + (n-1)d)
Theorems
Arithmetic sequence formula
Suitable Grade Level
Grades 7-9
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