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Beliebt Geometry >

radius 9x^2+9y^2+42x+84y+65=0

Lösung

radius

9 x^{2} + 9 y^{2} + 42 x + 84 y + 65 = 0

Lösung

r = 25

Schritte zur Lösung

9 x^{2} + 9 y^{2} + 42 x + 84 y + 65 = 0

Rewrite

9 x^{2} + 9 y^{2} + 42 x + 84 y + 65 = 0

in the form of the standard circle equation

(x - (- \frac{7}{3}))^{2} + (y - (- \frac{14}{3}))^{2} = (25)^{2}

Therefore the circle properties are:

(a, b) = (- \frac{7}{3}, - \frac{14}{3}), r = 25

And the radius is:

r = 25

Graph

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