A pair of tangent drawn from the origin to the circle x2 + y2 + 20(x+y) + 20 = 0 - Maths -

Question

A pair of tangent drawn from the origin to the circle x2
+ y2 + 20(x+y) + 20 = 0 The equation of the pair of
tangents is

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A pair of tangent drawn from the origin to the circle x2 + y2 + 20(x+y) + 20 = 0. The equation of the pair of tangents is