Find the Volume bounded by the 3 cylinders:x^2+y^2=a^2, y^2+z^2=a^2 and x^2+z^2=a^2
You may just list the integral without carrying out the integration.
The corresponding graph is here:
圖片參考:http://www.mediafire.com/imgbnc.php/d3b925e4bce1a3311c4f1d707d72c8db576533e7f590cb3c311c6bfe0f07d5335g.jpg