Saturday

August 30, 2014

August 30, 2014

Posted by **jimmy** on Saturday, May 12, 2007 at 3:06am.

about the x-axis.

surface area=

⌠ 2pi * f(x)*sqrt[1 + (f'(x))^2] dx from a to b

⌡

it's been 45 years since I used that formula.

I ended up with the integral of (2pi(4x + 4)^(1/2) dx from 0 to 1

looks pretty straighforward after this, let me know whether it worked out.

BTW, what level is this from, surely not highschool.

**Related Questions**

calculus II SURFACE AREA Integration - Find the exact area of the surface ...

Calculus I - Find the exact area of the surface obtained by rotating the curve ...

Calculus I - Find the exact area of the surface obtained by rotating the curve ...

Calculus - The graph of the curve y2=10 x+10 is a parabola, symmetric with ...

Calculus - Suppose that the region between the x-axis and the curve y=e^-x for x...

mathematics - use Simpson's Rule with n=10 to approximate the area of the ...

Calculus - 1. Find the volume formed by rotating the region enclosed by x=5y and...

calculus edit - 1. Find the volume formed by rotating the region enclosed by x=...

calculus - The area enclosed between the x-axis, the curve y=x(2-x) and the ...

calculus 2 - The curve y=sinh(x),0<=x<=1, is revolved about the x-axis. ...