if the lines Ax + By +C = 0 and ax + by +c =0 cut the coordinate axis at the concylic points then find relation between A ,a , B , b

Aa=Bb

aA +bB +1 =0

find d 4 points in form of a,b,c  and A,B,C

plot d graff (for ur convenience)

equate sum of ne 2 opp angles =180

eliminate one of c or C

do same with other pair

eliminate other constant

get d reqd relation

(its easier dan it looks ...really)

never overestimate a question

never underestimate urself..

if the lines Ax + By +C = 0 and ax + by +c =0 cut the coordinate axis at the concylic points then find relation between A ,a , B , b

let the 1st line cut the axes at points A , D

let the 2nd line cut the axes at points B , C

so A=(-C/A ,0) , D=(0, -C/B)

and B=(-c/a,0)  , C=(0, -c/b)

now consider OA.OB=OC.OD where O is (0,0)

hence u get aA=bB

I got two answers...either aA=bB, or aA=bB.

Here's my explanation. Please download and see...

@ anchit saini....gr8 answer dude....i missed the third condition, the products of slopes being unity....but the third condition also gives aA=bB....which i didnt miss....:P

givin 5 pts to u for that...!