Integrais duplos e de linha
Integrais duplos e de linha
Integrais duplos e de linha
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22 <strong>Integrais</strong> Duplos<br />
(b)<br />
(c)<br />
(d)<br />
(e)<br />
(f)<br />
Z0<br />
√ y+1<br />
Z<br />
−1−<br />
√ y+1<br />
Z1<br />
Z<br />
1<br />
0 x2 Z2<br />
1<br />
Z1<br />
0<br />
Z1<br />
0<br />
Z<br />
x 2 dxdy<br />
Ã<br />
x3 !<br />
p dydx<br />
x4 + y2 log x<br />
Z<br />
y<br />
Z<br />
x<br />
0<br />
1<br />
1<br />
e −x dxdy<br />
e y/x dxdy<br />
x2ey4 dxdy<br />
8. Consi<strong>de</strong>re o integral duplo<br />
Z 1<br />
0<br />
Z 1−x<br />
dx<br />
− √ 1−x2 f(x, y) dy.<br />
Estabeleça a outra or<strong>de</strong>m <strong>de</strong> integração e calcule o valor do integral para f(x, y) =<br />
√ 2x.<br />
9. Inverta a or<strong>de</strong>m <strong>de</strong> integração no seguinte integral duplo<br />
Z 1<br />
0<br />
dy<br />
10. Consi<strong>de</strong>re o integral duplo<br />
Z √ y<br />
0<br />
f(x, y)dx +<br />
Z 1<br />
0<br />
Z 2<br />
1<br />
dy<br />
Z 2−y<br />
Z − ln y<br />
dy<br />
−1+ √ f(x, y)dx.<br />
y<br />
0<br />
f(x, y)dx.<br />
Inverta a or<strong>de</strong>m <strong>de</strong> integração e mostre que tem o valor 10<br />
63 paraocaso<strong>de</strong>f(x, y) =y2 .<br />
11. Determine o valor do integral duplo<br />
para f(x, y) =e y<br />
x +x .<br />
Z 1<br />
4<br />
0<br />
Z 1<br />
2<br />
dy<br />
+<br />
<br />
1−4y<br />
4<br />
1<br />
2 −<br />
<br />
1−4y<br />
4<br />
f(x, y) dx