Question

I came across this thing and..

Answer 1

and>?

Answer 2

Why isn't the outer radius x^2-2x+4?

Answer 3

Haha @dmezzullo :)

Answer 4

Aww :(

Answer 5

hmmmm

Answer 6

Here's how I did it:\[\large A(x)=\pi (x^4-4x^3+11x^2-8x)\] and then integrate it \[\large \int_{0}^{3}\pi (x^4-4x^3+11x^2-8x)\]

Answer 7

\[\large \int_{0}^{3}\pi (x^4-4x^3+11x^2-8x)dx\]

Answer 8

this is the outer radiusthe upper y minus thee lower y is\[r=4-(x^2-2x)\]

Answer 9

the*