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Web skærmformat. - Aarhus Universitet

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I. Differentiation – 1. Kontinuitet 14<br />

y<br />

Niveaukurver for f(x,y) = x 2 − y 2<br />

y = √ x 2 4<br />

1.9. Halvkugleskal ☞ [S] 11.1 Functions of several variables<br />

Eksempel 3,4,8<br />

g(x,y) = 9 − x 2 − y 2<br />

Grafen er en halvkugleskal<br />

Γg = {(x,y,z)|x 2 + y 2 ≤ 9,z = 9 − x 2 − y 2 }<br />

x

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