Determine the radius of the circle .

MATHEMATICS · Single correct · CBSE · Mathematics · Conic Sections · Conic Sections

Problem

Determine the radius of the circle

x^2 + y^2 + 6x - 4y + 1 = 0

. (a)

\sqrt{13}

(b)

2

(c)

2\sqrt{3}

(d)

\sqrt{6}

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