Q146. The line 3x - 2y = k meets the circle x2 + y2 = 4r2 at only one point if k2 is equal to:Mathematics — Conic Sections — Question 146 of 272A. 46/9 r2B. 23/3 r2C. 20r2D. 52r2Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →