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Web skærmformat. - Aarhus Universitet

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I. Differentiation – 3. Tangentplan 53<br />

Figur<br />

y<br />

(a, f(a))<br />

y = f(a) + f ′ (a)(x a)<br />

I ⊂ R, f : I → R<br />

3.3. Ligning for tangent ☞ [S] 2.7 Derivatives<br />

Definition<br />

Tangentlinjen for grafen for en funktion y = f(x) i et punkt (a,b), b = f(a) er linjen gennem<br />

(a,b), som indeholder tangentvektoren<br />

(1,f ′ (a))<br />

f(x)<br />

x

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