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January 20th, 2011, 09:15 PM  #1 
Newbie Joined: Jan 2011 Posts: 2 Thanks: 0  Scalar projection, distance from point to line
Hey there...working out some problems I am having with calc right now, it's been a few years for me. So problem states, use scalar projection to show that the distance from P=(x,y) to line ax + by + c = 0 is: ax+by+c / sqrt(a^2 + b^2) Any help? 
January 20th, 2011, 10:56 PM  #2 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,211 Thanks: 521 Math Focus: Calculus/ODEs  Re: Scalar projection, distance from point to line
I found the solution, and uploaded the pdf file: [attachment=0:3kchncpa]pointline.pdf[/attachment:3kchncpa] 
January 21st, 2011, 04:30 AM  #3 
Newbie Joined: Jan 2011 Posts: 2 Thanks: 0  Re: Scalar projection, distance from point to line
Managed to get it...if anyone would like the solution posted, feel free to PM me or something and I'll put it up for ya.


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distance, line, point, projection, scalar 
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