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OpenStudy (richyw):
Describe and sketch the surface \(x^2+z^2-2x+2z+1=0\) how can I not remember how to do this!
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OpenStudy (experimentx):
complete squares, it's a circle ,,, a curve than surface. If you are looking for surface then it should be infinite cylinder
OpenStudy (richyw):
thanks. man i panic before finals...
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