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flodu7190
@flodu7190
June 2021
1
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Quel est le domaine de définition de :
1) e^x-1
------------------
e^3x+1 - √e
2) √e^3x - 1
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danielwenin
Verified answer
Il faut
e^3x+1 - √e différent de 0
donc e^(3x+1) = e^(1/2) => 3x+1 = 1/2 => 3x = -1/2 => x = -1/6
il faut x différent de 1/6
) √e^3x - 1 il faut e^3x > 1 => e¨3x > e^0 => 3x > 0 => x > 0
voilà
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Verified answer
Il faut e^3x+1 - √e différent de 0donc e^(3x+1) = e^(1/2) => 3x+1 = 1/2 => 3x = -1/2 => x = -1/6
il faut x différent de 1/6
) √e^3x - 1 il faut e^3x > 1 => e¨3x > e^0 => 3x > 0 => x > 0
voilà