设z=e^xsin(x+y), 则dz|(0,π)=()A.-dx+dyB.dx-dyC.-dx-dyD.dx+dy

设z=e^xsin(x+y), 则dz|(0,π)=() A.-dx+dy B.dx-dy C.-dx-dy D.dx+dy

时间:2023-02-12 10:26:17

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