Math Problem Statement

كيف يمكنني إثبات الصيغة الأولى خطوة بخطوة؟

Solution

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Math Problem Analysis

Mathematical Concepts

Summation
Arithmetic Series

Formulas

Summation formula: \( \sum_{i=a}^{b} c = c \cdot (|b - a| + 1) \)

Theorems

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Suitable Grade Level

High School