Put x = -1 & y = -3 in expression x2 + y2 + 4x + 2y - 1
then
x2 + y2 + 4x + 2y - 1 = (-1)2 + (-3)2 - 4 - 6 - 1
= 1 + 9 - 11
= -1 < 0
Hence point (-1, -3) lies inside the circle.
Therefore, no tangent can be drawn from point (-1, -3) on the given circle.