1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: [Not Homework!] Polar Equation Problem Involved Tangents

  1. Apr 15, 2012 #1
    Not homework, just trying to learn how to solve this problem for an exam.

    1. The problem statement, all variables and given/known data

    https://dl.dropbox.com/u/23889576/Screenshots/10.png [Broken]

    2. Relevant equations

    [itex]\int_{a}^{b} \sqrt { (\frac{dr}{dθ})^2 + r^2 }\, dθ[/itex]

    3. The attempt at a solution

    Had much difficulty, could not even derive the original derivative function for this problem.
     
    Last edited by a moderator: May 5, 2017
  2. jcsd
  3. Apr 15, 2012 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    welcome to pf!

    hi suporia! welcome to pf! :wink:

    the figure is symmetric, so when one bug is at (r,θ), the next is at (r,θ+π/2) …

    does that help? :smile:
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook




Loading...