Solve it plz...
Q26. If the lines a1x + b1y + c1 = 0 and a2x + b2y + c2 =0 cut the coordinate axes in concyclic points, then
(a) a1b1 = a2b2 (b)
(c) a1 + a2 = b1 + b2 (d) a1a2 = b1b2
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