https://web2.0calc.com/questions/let-denote-the-circular-region-bounded-by-x-2-y-2
:D
Be really great if someone could answer this :D
answer see: https://web2.0calc.com/questions/let-denote-the-circular-region-bounded-by-x-2-y-2
Thanks so much!! :D
+1452 
+26393 
