Question

Find the exact area of the surface obtained by rotating the curve about the x-axis.
y=sqrt(1+3x), 1 11 years ago

Answer 1

Hi I can help u

Answer 2

the 2nd radical isn't quite right
for surface area integral, multiply by dA
dA=1+f′(x)2−−−−−−−−√

f′(x)=24x+1−−−−−√

→1+44x+1−−−−−−−−−√=4x+54x+1−−−−−−√

Answer 3

your welcome...for an answer i got 98pi/3

Answer 4

medal and fan me plz

Answer 5

98pi/3 isn't correct

Answer 6

First, draw the graph, then set up your integral. Here is what you have: