Math Problem Statement
Soit n un entier naturel non nul et Un =1+3+5+7+••+(2-1)
- Calculer u1, U2, Из, И4
- Conjecturer une expression simple de un en fonction de n puis démontrer cette conjecture par récurrence.
Solution
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Math Problem Analysis
Mathematical Concepts
Arithmetic Sequences
Sums of Odd Numbers
Mathematical Induction
Formulas
Sum of first n odd numbers: U_n = 1 + 3 + 5 + ... + (2n - 1) = n^2
Theorems
Principle of Mathematical Induction
Suitable Grade Level
Grades 9-12
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