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Web skærmformat. - Aarhus Universitet

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II. Integration – 4. Koordinatskift 241<br />

Kilen med radius a og højde b er i "cylinderkoordinater":<br />

Vis, at volumenet V er<br />

D = {(r,θ)|0 ≤ r ≤ a,0 ≤ θ ≤ π}<br />

E = {(r,θ,z)|(r,θ) ∈ D,0 ≤ z ≤ b<br />

r sin θ}<br />

a<br />

V = 2<br />

3 a2 b<br />

4.28. Kile i polære koordinater ☞ [S] 12.4 Double integrals in polar . . .<br />

Kile - figur<br />

z<br />

x<br />

a<br />

D = {(r,θ)|0 ≤ r ≤ a,0 ≤ θ ≤ π}<br />

b<br />

a<br />

y

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