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Web skærmformat. - Aarhus Universitet

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I. Differentiation – 1. Kontinuitet 18<br />

y<br />

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

−y<br />

1 + x 2 + y 2<br />

1.14. Udvid til mange variable ☞ [S] 11.1 Functions of several variables<br />

Eksempel 11<br />

Omtalen af funktioner i to variable udvides umiddelbart til tre eller flere variable.<br />

Udtrykket<br />

f(x,y,z) = ln(z − y) + xy sin(z)<br />

x

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