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
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