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Jesaispas7532
@Jesaispas7532
May 2019
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Bonsoir, je bloque sur les exo ( 42,43 ) de maths sur les dérivés , quelqu'un pourrait m'aider? Merci d'avance
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taalbabachir
Verified answer
EX42
a) f(x) = (x - 1)² ⇒ f '(x) = 2(x - 1)
b) f(x) = 3 x/ x - 1 ⇒ f '(x) = - 3/(x - 1)² x ≠ 1
c) f(x) = (3 - x)√x ⇒f '(x) = (3 - 3 x)/ 2√x ]0 ; +∞[
EX43
a) f(x) = - 2x/(x² + x + 1) ⇒ f '(x) = (2 x² - 2)/(x² + x + 1)²
b)
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jesaispas7532
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Jesaispas7532
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Bonjour quelqu'un pourrai m'aider sur ceci svp
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Verified answer
EX42a) f(x) = (x - 1)² ⇒ f '(x) = 2(x - 1)
b) f(x) = 3 x/ x - 1 ⇒ f '(x) = - 3/(x - 1)² x ≠ 1
c) f(x) = (3 - x)√x ⇒f '(x) = (3 - 3 x)/ 2√x ]0 ; +∞[
EX43
a) f(x) = - 2x/(x² + x + 1) ⇒ f '(x) = (2 x² - 2)/(x² + x + 1)²
b)