All subjects

All subjects

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\Huge\text{Définition}

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\Huge\text{d'une corde ?}

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\LARGE \text{Une corde est un}

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\LARGE \text{segment reliant}

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\LARGE \text{2 points d'une courbe}

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\LARGE \text{Que dire de } f \text{ si }\mathscr{C}_{f}

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\LARGE \text{toujours au-dessus}

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\LARGE \text{des cordes de }f?

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\Huge f \text{ concave}

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\LARGE \text{Que dire de } f \text{ si }\mathscr{C}_{f}

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\LARGE \text{toujours au-dessus}

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\LARGE \text{des tangentes de }f?

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\Huge \text{Convexité de}

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\Huge f:x\rightarrow \frac{1}{x}

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\Huge\text{ sur }\R^{+^{*} }?

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\LARGE\text{Si }\forall x\in I \text{, }f''(x)\leq {0}

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\LARGE\text{que dire de } f \text{ ?}

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\LARGE\text{Définition du}

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\LARGE\text{point d'inflexion ?}

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\LARGE\text{Interprétation}

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\LARGE\text{du point d'inflexion}

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\LARGE\text{sur l'allure de }f \text{ ?}

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\LARGE \text{Point d'inflexion de}

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\LARGE x\rightarrow {x^{3}-3x^{2}} \text{ ?}

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