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 one year ago
why does x^2+y^2 = 4c have no real solutions? (book example about functions of several variables and graphing functions)
 one year ago
why does x^2+y^2 = 4c have no real solutions? (book example about functions of several variables and graphing functions)

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tom_math
 one year ago
Best ResponseYou've already chosen the best response.0\[\forall c \le 4, x^{2}+y ^{2} = 4  c, is the equation for a circle with radius = \sqrt{4c}\]
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