Math Problem Statement

Diketahui suatu barisan aritmetika U menyatakan suku ke-n jika U16 dan U+U 24, maka jumlah 21 zuku pertama dari deret aritmetika adalah

Solution

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Math Problem Analysis

Mathematical Concepts

Arithmetic Sequences
Sum of Arithmetic Series

Formulas

Un = a + (n-1)d
Sn = n/2 * [2a + (n-1)d]

Theorems

Arithmetic Series Formula

Suitable Grade Level

Grades 10-12