Results 1 to 9 of 9
Like Tree2Thanks
  • 2 Post By Idea

Math Help - solve equation

  1. #1
    Newbie
    Joined
    Jan 2013
    From
    kolkata ( India)
    Posts
    24
    Thanks
    3

    solve equation

    solve
    Attached Thumbnails Attached Thumbnails solve equation-.jpg  
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Forum Admin topsquark's Avatar
    Joined
    Jan 2006
    From
    Wellsville, NY
    Posts
    9,929
    Thanks
    333
    Awards
    1

    Re: solve equation

    Quote Originally Posted by swarna View Post
    solve
    Spoiler:
    Okay, I solved it. Now what?


    What have you been able to do with it? We can help you better if we know what you have tried.

    -Dan
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Aug 2014
    From
    USA
    Posts
    9
    Thanks
    1

    Re: solve equation

    Hint: The solution involves a line and a circle. That is, there is no solution if the values of x and y lie on a particular line nor if they lie on a particular circle.
    Last edited by Ishuda; August 13th 2014 at 04:09 PM.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Junior Member
    Joined
    Aug 2014
    From
    Poland
    Posts
    40
    Thanks
    7

    Re: solve equation

    swarna You have two equations or system of them?
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Newbie
    Joined
    Jan 2013
    From
    kolkata ( India)
    Posts
    24
    Thanks
    3

    Re: solve equation

    Find x,y from these equations
    Follow Math Help Forum on Facebook and Google+

  6. #6
    Newbie
    Joined
    Jan 2013
    From
    kolkata ( India)
    Posts
    24
    Thanks
    3

    Re: solve equation

    I tried in this way.
    multiply the equation (1) by y and equation (2) by x. Now suppose these two equation become (3) and (4). now (3)+(4) & (3)-(4) i get another two equations and tried to solve them.
    Follow Math Help Forum on Facebook and Google+

  7. #7
    Member
    Joined
    Jun 2013
    From
    Lebanon
    Posts
    126
    Thanks
    56

    Re: solve equation

    Quote Originally Posted by swarna View Post
    I tried in this way.
    multiply the equation (1) by y and equation (2) by x. Now suppose these two equation become (3) and (4). now (3)+(4) & (3)-(4) i get another two equations and tried to solve them.
    Hint:
    Spoiler:
    Calculate 12 + 4 i where i^2 = -1
    Thanks from swarna and topsquark
    Follow Math Help Forum on Facebook and Google+

  8. #8
    Newbie
    Joined
    Jan 2013
    From
    kolkata ( India)
    Posts
    24
    Thanks
    3

    Re: solve equation

    Thank you all.
    Follow Math Help Forum on Facebook and Google+

  9. #9
    Member
    Joined
    Jun 2013
    From
    Lebanon
    Posts
    126
    Thanks
    56

    Re: solve equation

    Quote Originally Posted by swarna View Post
    Thank you all.
    12+4i=5x + \frac{5x}{x^2+y^2}+5 i y -\frac{5 i y}{x^2+y^2}=5z+\frac{5}{z}

    where

    z=x+i y

    This leads to a quadratic in z with two solutions z=2+i and z=\frac{2}{5}-\frac{1}{5}i

    So x = 2 y = 1 and x = 2/5 and y = -1/5 are the two solutions of the system
    Last edited by Idea; August 14th 2014 at 03:47 AM.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 1
    Last Post: December 2nd 2013, 06:20 AM
  2. Difference equation - struggling to solve the equation below
    Posted in the Advanced Applied Math Forum
    Replies: 3
    Last Post: June 10th 2012, 02:49 PM
  3. Differential Equation - how to solve a simple equation..
    Posted in the Differential Equations Forum
    Replies: 0
    Last Post: June 10th 2012, 03:57 AM
  4. need to solve summation equation to solve sum(x2)
    Posted in the Statistics Forum
    Replies: 2
    Last Post: July 16th 2010, 10:29 PM
  5. Replies: 13
    Last Post: May 19th 2008, 08:56 AM

Search Tags


/mathhelpforum @mathhelpforum