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by selango » Fri Aug 13, 2010 8:45 pm
2+2+2^2+2^3+2^4+2^5+2^6+2^7+2^8=?

2^2+2^2+2^3+2^4+2^5+2^6+2^7+2^8

2^3+2^3+2^4+2^5+2^6+2^7+2^8

2^4+2^4+2^5+2^6+2^7+2^8

2^5+2^5+2^6+2^7+2^8

2^6+2^6+2^7+2^8

2^7+2^7+2^8

2^8+2^8=2^9
--Anand--
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