1.Evaluate ∫∫(x^2dydz + y^2dxdz + z^2dxdy) where S is the round portion of
0≦z≦(1-y^2)^1/2, 0≦x≦2 describe the kind of surface
2.Evaluate ∫∫(x dydz + y dxdz + z dxdy) where S a portion of
x^2+y^2+z^2=4 in the first octant, oriented away from the origin.
describe the kind of surface
求上述兩題解,希望有步驟好理解
感謝!
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