Math Problem Statement

u6=4 et u8=12. Calculer r puis u5

Solution

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Math Problem Analysis

Mathematical Concepts

Arithmetic Sequences
Linear Equations

Formulas

u_n = u_0 + n × r
u_8 = u_6 + 2r
u_5 = u_6 - r

Theorems

Arithmetic Sequence Formula

Suitable Grade Level

Grades 8-10