Try Another Version of This Question Question 1
Let `C` be the curve ` y = 2 sqrt( x ) ` for `1.1 le x le 4.9`.
Find the surface area of revolution about the `x`-axis of `C`.
Surface area `= int_1.1^4.9 f( x ) \ dx` where
`f( x ) =`
Now integrate to find surface area `= int_1.1^4.9 f( x ) \ dx =`
`2 pi * 2 sqrt( x + 2^2 / 4 )`
94.564963925686