There are two tangent lines from the point (0, 1) to the circle x + (y +

There are two tangent lines from the point (0, 1) to the circle x² + (y + 1)² = 1 (see figure). Find equations of these two lines by using the fact that each tangent line intersects the circle at exactly one point.

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-3-2 2 -3 y -4+ 23