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DLS
 3 years ago
If 2x4y9=0 & 6x12y+7=0
are tangents to same circle then R=?
DLS
 3 years ago
If 2x4y9=0 & 6x12y+7=0 are tangents to same circle then R=?

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DLS
 3 years ago
Best ResponseYou've already chosen the best response.0yahan par inhone 2r=P1P2 kiya hai why did they subtract:/

rajathsbhat
 3 years ago
Best ResponseYou've already chosen the best response.0yeah i remember doing it that way. But I'm not sure why.... lemme think..

Callisto
 3 years ago
Best ResponseYou've already chosen the best response.2Hmm.. Not sure if this way works! 2x4y9=0 & 6x12y+7=0 = tangents to the same circle. That have the same slope => perpendicular distance between the two lines is the diameter of the circle. Half of the diameter is the radius :\ I think this is not a smart way to solve your problem though :(

shubhamsrg
 3 years ago
Best ResponseYou've already chosen the best response.0as @Callisto rightly stated..the lines are parallel, distance between them gives diameter, half of diameter is radius! voila !
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