'HW/HW 27,28,29'에 해당되는 글 4건
L29.pdfHW 27
HW/HW 27,28,29 2006/11/01 22:47 I just finished grading HW 27. I did number 1 and 3.
On number 1, I took off two points if the construction of triple integration is not correct. It is an eazy problem but you have be really careful not messing up with the orders. Number 3 is not super difficult if you can follow the order of integration but a few of you screwed this one because you wrote z and used 2 instead of z.
I guess the last problem is the toughest one. I suggest you to draw the graph first. If you do not know how to draw it please refer to the one that explains quadratic surfaces. The order of integration should be
or 
After integrating with respect to x you may want to use polar coordnates with y and z.
That's it.
On number 1, I took off two points if the construction of triple integration is not correct. It is an eazy problem but you have be really careful not messing up with the orders. Number 3 is not super difficult if you can follow the order of integration but a few of you screwed this one because you wrote z and used 2 instead of z.
I guess the last problem is the toughest one. I suggest you to draw the graph first. If you do not know how to draw it please refer to the one that explains quadratic surfaces. The order of integration should be
That's it.