Try another version of this question Box 1: Enter your answer as an expression. Example: 3x^2+1, x/5, (a+b)/c
Box 2: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Let `C` be the curve ` y = 8 sqrt( x ) ` for `2.9 le x le 4.8`.
Find the surface area of revolution about the `x`-axis of `C`.
Surface area `= int_2.9^4.8 f( x ) \ dx` where
`f( x ) =`
Now integrate to find surface area `= int_2.9^4.8 f( x ) \ dx =`
Be sure your variables match those in the question `2 pi * 8 sqrt( x + 8^2 / 4 )`
Enter DNE for Does Not Exist, oo for Infinity 425.46343735063