. If two lines
If two lines a1x + b1y + c1 = 0 and a2x + b2y + c2 = 0 cut the coordinate axes at concyclic points, then
(a) a1a2 + b1b2 = 0 (b) a1a2 - b1b2 = 0
(c) a1b1 + a2b2 = 0 (d) a1b1 - a2b2 = 0
Best Answer
Related questions
If two lines a1x + b1y + c1 = 0 and a2x + b2y + c2 = 0 cut the coordinate axes at concyclic points, then
(a) a1a2 + b1b2 = 0 (b) a1a2 - b1b2 = 0
(c) a1b1 + a2b2 = 0 (d) a1b1 - a2b2 = 0
