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Web skærmformat. - Aarhus Universitet

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I. Differentiation – 3. Tangentplan 55<br />

Figur<br />

y<br />

0<br />

D<br />

(x,y)<br />

x<br />

D ⊂ R 2 , f : D → R<br />

f(x,y)<br />

3.6. Tangentplan ☞ [S] 11.4 Tangent planes and linear approx.<br />

Definition<br />

Tangentplanen til grafen for en funktion z = f(x,y) i et punkt (x0,y0,z0), z0 = f(x0,y0) er<br />

planen gennem (x0,y0,z0), som indeholder tangentvektorerne<br />

(1,0,fx(x0,y0)), (0,1,fy(x0,y0))

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