Coucou!
1) f'(-1) = -1
f'(0) = - 1
f' (1) = -1
2) Soit f(x) = x^3 - x - 1
Donc:
• f'(-1) = (-1)^3 - (-1) - 1
= -1 + 1 - 1
= -1
• f'(0) = 0^3 - 0 - 1
• f'(1) = 1^3 - 1 -1
= 1 - 1 - 1
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Coucou!
1) f'(-1) = -1
f'(0) = - 1
f' (1) = -1
2) Soit f(x) = x^3 - x - 1
Donc:
• f'(-1) = (-1)^3 - (-1) - 1
= -1 + 1 - 1
= -1
• f'(0) = 0^3 - 0 - 1
= -1
• f'(1) = 1^3 - 1 -1
= 1 - 1 - 1
= -1