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July 8, 2015

Homework Help: maths

Posted by Shane on Sunday, September 1, 2013 at 2:01am.

A circle x^2 + y^ + 2x - 2y -1 = 0 expressed in the following form (x-h)^2 + (y-k)^2 = r^2 where h, k are the coordinates of the centre. How is r the radius given?

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