math - suites

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SA & SG + aires et périmètres

Calculus

Infinite Sequences

11th

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9 Terms

1
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formule de récurrence SA
un = u₁ + (n - 1) . q
2
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formule de la somme SA
Sn = n . (u₁ + un) / 2
3
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formule de récurrence SG
un = u₁ . q\* n-1
4
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formule de la somme SG
Sn = u₁ . (1 - q\* n) / (1 - q)
5
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périmètre cercle
2 . π . r
6
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aire du cercle
π . r²
7
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aire du triangle
b . h / 2 ou L . l / 2
8
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aire du rectangle
L . l
9
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aire du carré
c . c = c²