Math Problem Statement

Demuestre que para todo n 1 se cumple la igualdad 3 +11+...... +(8n 5)=4n2 n

Solution

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Math Problem Analysis

Mathematical Concepts

Arithmetic Progression
Summation of Series
Algebra

Formulas

General term of an arithmetic progression: a_n = a_1 + (n-1)d
Summation of an arithmetic series: S_n = n/2 * (a_1 + a_n)
Sum of first n natural numbers: ∑k=1 to n (k) = n(n+1)/2

Theorems

Sum of Arithmetic Progression

Suitable Grade Level

Grades 10-12