spiccegirl7 spiccegirl7

25-06-2018
Mathematics

contestada

Which of the following is the standard equation for a circle with a center at the origin ?

x^2 - y^2 = r

x^2 - y^2 = r^2

x^2 + y^2 = r^2

x^2 + y^2 = r

Respuesta :

jbblackburn jbblackburn

25-06-2018

It is x^2+y^2=r^2, or c

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