If the line y=mx+c is tangent to the circle x2+y2=5r2 and the parabola – InterviewSolution

1.	If the line y=mx+c is tangent to the circle x2+y2=5r2 and the parabola y2−4x−2y+4λ+1=0 and point of contact of the tangent with the parabola is (8,5), then the value of (25r2+λ+2m+c) is
Answer» If the line $y = m x + c$ is tangent to the circle $x^{2} + y^{2} = 5 r^{2}$ and the parabola $y^{2} - 4 x - 2 y + 4 λ + 1 = 0$ and point of contact of the tangent with the parabola is $(8, 5),$ then the value of $(25 r^{2} + λ + 2 m + c)$ is

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