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Change order between integral and differential calculation

  1. Sep 17, 2014 #1
    Please help look at this picture and give me the answer please: are those right or not? In general look, when we can change the order between integral and differential calculation?https://m.ak.fbcdn.net/sphotos-h.ak/hphotos-ak-xpf1/v/t34.0-12/10603742_848540828497240_5787805822965408581_n.jpg?oh=d1301631ee463def5808c00a56f64db7&oe=541CA6B5&__gda__=1411157002_20c5d665996e10a1d77440ee28d0618b [Broken]
     
    Last edited by a moderator: May 6, 2017
  2. jcsd
  3. Sep 20, 2014 #2

    HallsofIvy

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    I can see no picture.
     
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