The equation of the tangent to the circle x2 + y2 + 2gx + 2fy + c = 0 at the or

The equation of the tangent to the circle x2 + y2 + 2gx +
2fy + c = 0 at the origin is

(1) x = 0

(2) y = 0

(3) fx + gy = 0

(4) gx + fy = 0

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The equation of the tangent to the circle x2 + y2 + 2gx + 2fy + c = 0 at the origin is (1) x = 0..

Answer / ali

( 4 ) gx + fy = 0

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