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Web skærmformat. - Aarhus Universitet

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I. Differentiation – 7. Lagrangemetoden 150<br />

Eksempel 1 - fortsat<br />

Lagranges ligningssystem opskrives<br />

Heraf<br />

yz = λ(y + 2z)<br />

xz = λ(x + 2z)<br />

2xz + 2yz + xy = 12<br />

2xz + 2yz + xy = 12<br />

xy = λ(2x + 2y)<br />

xyz = λ(xy + 2xz)<br />

xyz = λ(xy + 2yz)<br />

xyz = λ(2xz + 2yz)<br />

7.18. Kassefabrikant ☞ [S] 11.8 Lagrange multipliers<br />

Eksempel 1 - fortsat<br />

Der løses<br />

x = y<br />

y = 2z<br />

4z 2 + 4z 2 + 4z 2 = 12

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