I am getting 83 as my answer however it is not one of the an

I am getting -8/3 as my answer, however it is not one of the answer choices. Can someone show me this problem worked out please?

you are gitting is correct.

But in the formula of volume,

I = intigration of with limts,

And V = mod (I)

So it will be positive only.

answer will be 8/3