Suites Flashcards by Adaora ILOANUSI

Q

suite arithmétique

A

on additionne

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Q

suite géométrique

A

on multiplie

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Q

suite arithmétique (formule base)

A

Un+1 = Un + r

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Q

comment calculer la raison r

A

r = Un+1 - Un

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Q

notation explicite suite arithmétique

A

Un = Up + (n-p)r ou Un = U₀ + nr

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Q

Somme suite arithmétique

A

n(n+1) / 2

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Q

suite géométrique (formule base)

A

Un+1 = Un * q

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Q

comment calculer la raison q

A

q = Un+1 / Un

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Q

notation explicite suite géométrique

A

Un = Up * q^n-p ou Un = U₀ * q^n

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Q

Somme suite géométrique

A

1-q^n+1 / 1-q

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