Question

4. What are the coordinates of the points of tangency of the two tangent lines through the point (−1,−1) each tangent to the circle x^2+y^2=1?

Answer 1

The coordinates of the points of tangency are (-1,0) and (0,-1)

Explanation:

The points of tangency are defined as the points at which the two lines extending from the given point Po (-1,-1) are tangent to the given circle.

The points P1 and P2 labelled are the two points of tangency as seen from the graph