Find the volume of the solid that lies under the cone
z=4-(x^(2)+y^(2))^((1)/(2))
and between the range of
0.4<=z<=3.2
.
D={(r,\theta )|(1)/(8)\pi <=\theta <=(5)/(8)\pi }
. A plot of an example of a similar solid is shown below. (Answer accurate to 4 significant figures). Volume using Double Integral