Cal 2 brahs, how df do you solve these questions?
https://imgur.com/a/ESsNm
I have a rough idea on how to solve the second one, but I don't know if my method is correct. I used the shell method with the value (y+3) for the radius, dunno if this is correct. Help pls
December 6, 2017
1 Comment • Newest first
Probably have enough time to do the first,
Take the derivative of y=x^4+1/32x^2, you get dy/dx=4x^3-(1/16x^3)
L(arc length)= integral (ds), ds=sqrt(1+dy/dx)^2
I then plugged in, integrated from 1 to 2, and my answer was 290.785, I'll be around later, let me know if you see anything wrong with it.