سؤال اليوم في التكامل المضاعف multiple integrals

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بسم الله . حل بطريقة ثانية للسؤال 10 اعلاه :

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http://alnasiry.net/forums/uploaded/...teintegans.gif

http://alnasiry.net/forums/uploaded/2_q11multeinteg.gif

http://i.imgur.com/DeCklgil.jpg

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http://alnasiry.net/forums/uploaded/2_q12multeinteg.gif

http://i.imgur.com/wfjDjQTl.jpg

http://i.imgur.com/SX3p4Mtl.jpg