Q124. The value of λ for which the circles x2 + y2 - 3x + λy - 5 = 0 and 4(x2 + y2) - 12x - y - 9 = 0 become concentric is:Mathematics — Conic Sections — Question 124 of 272A. -1/8B. -1/6C. -1/4D. -1/2Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →