Question

help with volume

Answer 1

Find the volume of the solid formed by rotating the ellipse x^2/a^2+y^2/b^2=1about the x-axis

Answer 2

just square and integrate?

Answer 3

i'd have to look up to refresh how to do it again but you should manipulate it to:

\[y = \pm b \sqrt{1 - (x/a)^2}\]

and treat it like a single variable function.

easiest to do two times the positive half.

if you would like to know about the cylinder method to get to the answer, let me know

Answer 4

my bad. its around the x axis, so use the discs method

Answer 5

Could you walk me through this to the solution? Volume was never easy for me

Answer 6

do you get how i got the function?

ill start drawing

Answer 7

Yea, I understood that part

Answer 8

.........there's an easy way.....