If the tangent to the circle x2+y2=5 at (1,−2) also touches the circ – InterviewSolution

1.	If the tangent to the circle x2+y2=5 at (1,−2) also touches the circle x2+y2−8x+6y+20=0 at P(α,β), then the value of α2+β2 is
Answer» If the tangent to the circle $x^{2} + y^{2} = 5$ at $(1, - 2)$ also touches the circle $x^{2} + y^{2} - 8 x + 6 y + 20 = 0$ at $P (α, β),$ then the value of $α^{2} + β^{2}$ is

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