Results 1 to 2 of 2

Math Help - polar coordinates

  1. #1
    Member
    Joined
    Oct 2008
    Posts
    124

    polar coordinates

    transform the given polar equation to rectangular coordinates

    a) r = 5sec(theta)

    b) r = sec(theta)tan(theta)

    c) r = 4cos(theta) + 4sin(theta)
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by noles2188 View Post
    transform the given polar equation to rectangular coordinates

    a) r = 5sec(theta) Mr F says: {\color{red}\Rightarrow r cos \theta = 5} ....

    b) r = sec(theta)tan(theta) Mr F says: {\color{red}\Rightarrow r \cos \theta = \frac{\sin \theta}{\cos \theta} = \frac{y/r}{x/r} = \frac{y}{x}} ....

    c) r = 4cos(theta) + 4sin(theta) Mr F says: {\color{red}\Rightarrow r = 4 \frac{x}{r} + 4 \frac{y}{r} \Rightarrow r^2 = 4x + 4y} ....
    .... means the rest is left for you to finish off.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 10
    Last Post: September 24th 2010, 04:33 AM
  2. Replies: 6
    Last Post: February 4th 2009, 12:12 AM
  3. polar coordinates
    Posted in the Trigonometry Forum
    Replies: 3
    Last Post: August 30th 2008, 03:33 PM
  4. Polar Coordinates and Polar Graphs
    Posted in the Pre-Calculus Forum
    Replies: 4
    Last Post: October 2nd 2007, 04:44 PM
  5. polar coordinates
    Posted in the Calculus Forum
    Replies: 2
    Last Post: September 5th 2007, 07:07 PM

Search Tags


/mathhelpforum @mathhelpforum