Resistance of infinite resistor network [closed]

I was looking through Physics Olympiad problems and I found this. This question asks: Find the equivalent resistance between the points A and B, all the arms have equal resistance $R$.

I understand that the network is self similar and I can take the resistance of the whole network as a Variable and the solve for it, but I can't seem to understand how to do so for A and B. Any hints or suggestions to how to approach this would be highly appreciated. Thank you in advance.

closed as off-topic by John Rennie, Jon Custer, Kyle Kanos, Yashas, Emilio PisantySep 13 '17 at 14:08

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "Homework-like questions should ask about a specific physics concept and show some effort to work through the problem. We want our questions to be useful to the broader community, and to future users. See our meta site for more guidance on how to edit your question to make it better" – John Rennie, Jon Custer, Kyle Kanos, Yashas, Emilio Pisanty
If this question can be reworded to fit the rules in the help center, please edit the question.

• Is it infinite in all directions? – NickD Sep 11 '17 at 17:39
• No, just along its length(as per the dotted lines). – Tausif Hossain Sep 11 '17 at 17:40
• Welcome to Physics! Please note that this is not a homework help site. Please see this Meta post on asking homework questions and this Meta post for "check my work" problems. – Kyle Kanos Sep 12 '17 at 10:02
• Well this is not a homework question but one from an Olympiad which I was curious about and it's about a conceptual difficulty on how to solve these problems with infinite network of resistors. – Tausif Hossain Sep 12 '17 at 11:19