A tangent line L is drawn at the point (2,−4) on the parabola y2=8x. – InterviewSolution

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1.	A tangent line L is drawn at the point (2,−4) on the parabola y2=8x. If the line L is also tangent to the circle x2+y2=a, then a is equal to
Answer» A tangent line $L$ is drawn at the point $(2, - 4)$ on the parabola $y^{2} = 8 x$ . If the line $L$ is also tangent to the circle $x^{2} + y^{2} = a,$ then $a$ is equal to

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