Q31. If the circles x2 + y2 + 2x + 2ky + 6 = 0 and x2 + y2 + 2ky + k = 0 intersect orthogonally, then k is equal to:Mathematics — NUST Mock By IBAGRADS 4 — Question 31 of 200A. 2 or -3/2B. -2 or -3/2C. 2 or 3/2D. -2 or 3/2Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →